SlideShare a Scribd company logo
1 of 56
1
SIX SIGMA
"Delivering Tomorrow's Performance
Today"
Swati Modi
2
PRESENTATION LAYOUT
• Six Sigma: An overview
• What is Sigma and Six Sigma?
• Why Six Sigma?
• Six Sigma Levels
• Six Sigma Methodology and Management
• Key Roles for Six Sigma
• Tools for Six Sigma
• Trainings and Certifications
• Conclusion
3
• Your first question is likely….
What is Six Sigma?
• Your second question is likely…
Why Six Sigma?
4
WHAT IS SIGMA ?
• A term (Greek) used in statistics to represent
standard deviation from mean value, an indicator of
the degree of variation in a set of a process.
• Sigma measures how far a given process deviates
from perfection. Higher sigma capability, better
performance
5
WHAT IS SIX SIGMA?
• Six Sigma - A highly disciplined process that
enables organizations deliver nearly perfect
products and services.
• The figure of six arrived statistically from current
average maturity of most business enterprises
• A philosophy and a goal: as perfect as practically
possible.
• A methodology and a symbol of quality.
Contd…
6
WHAT IS SIX SIGMA?
• A statistical concept that measures a process in
terms of defects – at the six sigma level, there
3.4 defects per million opportunities.
Contd…
But, it is much more!
7
Six Sigma is not:
•A standard
•A certification
•Another metric like percentage
Rather!
•It is a Quality Philosophy and the way of improving
performance by knowing where you are and where
you could be.
• Methodology to measure and improve company’s
performance, practices and systems
WHAT IS SIX SIGMA
8
WHY SIX SIGMA ?
• Six Sigma emerged as a natural evolution in
business to increase profit by eliminating defects
• The Current business environment now demands
and rewards innovation more than ever before due
to:
 Customer Expectations
 Technological Change
 Global Competition
 Market Fragmentation
9
SIGMA LEVELS
Sigma Level ( Process
Capability)
Defects per Million
Opportunities
2 308,537
3 66,807
4 6,210
5 233
6 3.4
10
COMPANIES USING
Six Sigma is in use in
virtually all industries
around the world.
Some of companies
can be listed as:
• Motorola
• Ericsson
• General Electric
• Sony
• Ford Motor Co.
• CITI bank
11
SIX SIGMA METHODOLOGY
(It takes money to save money)
• BPMS
Business Process Management System
• DMAIC
Six Sigma Improvement Methodology
• DMADV
Creating new process which will perform at Six
Sigma
12
BUSINESS PROCESS
MANAGEMENT SYSTEM:
• BPM strategies emphasize on process
improvement and automation to derive
performance
• Combining BPM strategies with sigma six is
most powerful way to improve performance
• Both strategies are not mutually exclusive but
some companies produced dramatic results by
combining them.
13
WHAT IS DMAIC?
(Define,Measure,Analyse,Improve.Control)
• A logical and structured
approach to problem solving
and process improvement.
• An iterative process
(continuous improvement)
• A quality tool which focus on
change management style.
14
PHASES
Phases of Six Sigma are:
– Define specific goals to achieve
outcomes, consistent with customers
demand and business strategy
– Measure reduction of defects
– Analyze problems ,cause and effects
must be considered
– Improve process on bases of
measurements and analysis
– Control process to minimize defects
15
WHAT IS DMADV?
• Acronym for:
 Define the project
 Measure the opportunity
 Analyze the process options
 Design the process
 Verify the performance
16
WHEN SHOULD SIX SIGMA
BE USED?
Its usage depends on the type of business. In general,
“If there are processes that generate a lot of
negative customer feedback, whether that
customer is internal or external, the components
of Six Sigma should be considered as a means to
study and rectify the problem.”
17
BENEFITS OF SIX SIGMA
• Generates sustained success
• Sets performance goal for everyone
• Enhances value for customers
• Accelerates rate of improvement
• Promotes learning across boundaries
• Executes strategic change
18
USAGE OF SIX SIGMA
19
SIX SIGMA MANAGEMENT
When practiced as a management system, Six Sigma
is a high performance system for executing
business strategy.
Six Sigma is a top down solution to help
organizations:
• Align their business strategy to critical
improvement efforts
• Mobilize teams to attack high impact projects
• Accelerate improved business results
• Govern efforts to ensure improvements are
sustained
20
KEY ROLES FOR SIX SIGMA
Six Sigma identifies several key roles for its
successful implementation:
• Executive leadership
• Champions
• Master Black Belts (Identify projects&
functions)
• Black Belts (Identify non value added
activities)
• Green Belts ( works on small projects )
Top
Bottom
21
TOOLS & TECHNIQUES
• 7QC tools
 Check Sheets (collect data to make improvements)
 Pareto Charts( define problem and frequency)
 Cause and effect diagram (Identify possible causes
to solve problem)
 Histogram (Bar charts of accumulated data to
evaluate distribution of data)
 Scatter diagram (plots many data points and
pattern between two variables)
 Flow Chart (Identify unwanted steps)
 Control charts (Control limits around mean value)
22
TRAININGS & CERTIFICATIONS
If you want to make yourself
more valuable and attractive to
employers then get training and
certification
• Option I – Certification as Six
Sigma Green Belt
• Option II – Certification as Six
Sigma Black Belt
23
CONCLUSION
Six Sigma is methodology used for:
• Aligning key business processes to achieve those
requirements.
• Utilizing rigorous data analysis to minimize data
variation in those processes.
• Driving rapid and sustainable improvement to
business processes.
24
Q&A
25
THANKS
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56

More Related Content

Similar to Six Sigma: A Statistical Approach to Quality Improvement

Similar to Six Sigma: A Statistical Approach to Quality Improvement (20)

Six sigma
Six sigmaSix sigma
Six sigma
 
Introduction to lean six sigma 2 day seminar
Introduction to lean six sigma 2 day seminarIntroduction to lean six sigma 2 day seminar
Introduction to lean six sigma 2 day seminar
 
Six sigma
Six sigmaSix sigma
Six sigma
 
sixsigma-
sixsigma-sixsigma-
sixsigma-
 
Six sigma...by raziel lucagbo
Six sigma...by raziel lucagboSix sigma...by raziel lucagbo
Six sigma...by raziel lucagbo
 
six-sigma-7300-WK9WCMu.pptx
six-sigma-7300-WK9WCMu.pptxsix-sigma-7300-WK9WCMu.pptx
six-sigma-7300-WK9WCMu.pptx
 
Six Sigma
Six SigmaSix Sigma
Six Sigma
 
Use of six sigma a practical approach
Use of six sigma a practical approachUse of six sigma a practical approach
Use of six sigma a practical approach
 
Six Sigma.ppt
Six Sigma.pptSix Sigma.ppt
Six Sigma.ppt
 
Six sigma - pimg
Six sigma - pimgSix sigma - pimg
Six sigma - pimg
 
Six sigma.pptx
Six sigma.pptxSix sigma.pptx
Six sigma.pptx
 
Lean Six Sigma Introduction free web class.pptx
Lean Six Sigma Introduction free web class.pptxLean Six Sigma Introduction free web class.pptx
Lean Six Sigma Introduction free web class.pptx
 
6 sigma
6 sigma6 sigma
6 sigma
 
Lean six sigma Yellow Belt Complete training
Lean six sigma Yellow Belt Complete trainingLean six sigma Yellow Belt Complete training
Lean six sigma Yellow Belt Complete training
 
Six sigma
Six sigmaSix sigma
Six sigma
 
Six Sigma
Six SigmaSix Sigma
Six Sigma
 
VTU Syllabus, MBA TQM, Module 8
VTU Syllabus, MBA TQM, Module 8VTU Syllabus, MBA TQM, Module 8
VTU Syllabus, MBA TQM, Module 8
 
Lean 6 sigma
Lean 6 sigmaLean 6 sigma
Lean 6 sigma
 
Six Sigma .pdf
Six Sigma .pdfSix Sigma .pdf
Six Sigma .pdf
 
Six sigma, spc , lean
Six sigma, spc , leanSix sigma, spc , lean
Six sigma, spc , lean
 

Recently uploaded

GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTS
GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTSGRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTS
GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTSJoshuaGantuangco2
 
Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)Mark Reed
 
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...Nguyen Thanh Tu Collection
 
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptx
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptxINTRODUCTION TO CATHOLIC CHRISTOLOGY.pptx
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptxHumphrey A Beña
 
4.16.24 21st Century Movements for Black Lives.pptx
4.16.24 21st Century Movements for Black Lives.pptx4.16.24 21st Century Movements for Black Lives.pptx
4.16.24 21st Century Movements for Black Lives.pptxmary850239
 
Active Learning Strategies (in short ALS).pdf
Active Learning Strategies (in short ALS).pdfActive Learning Strategies (in short ALS).pdf
Active Learning Strategies (in short ALS).pdfPatidar M
 
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptx
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptxQ4-PPT-Music9_Lesson-1-Romantic-Opera.pptx
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptxlancelewisportillo
 
ANG SEKTOR NG agrikultura.pptx QUARTER 4
ANG SEKTOR NG agrikultura.pptx QUARTER 4ANG SEKTOR NG agrikultura.pptx QUARTER 4
ANG SEKTOR NG agrikultura.pptx QUARTER 4MiaBumagat1
 
TEACHER REFLECTION FORM (NEW SET........).docx
TEACHER REFLECTION FORM (NEW SET........).docxTEACHER REFLECTION FORM (NEW SET........).docx
TEACHER REFLECTION FORM (NEW SET........).docxruthvilladarez
 
Textual Evidence in Reading and Writing of SHS
Textual Evidence in Reading and Writing of SHSTextual Evidence in Reading and Writing of SHS
Textual Evidence in Reading and Writing of SHSMae Pangan
 
Integumentary System SMP B. Pharm Sem I.ppt
Integumentary System SMP B. Pharm Sem I.pptIntegumentary System SMP B. Pharm Sem I.ppt
Integumentary System SMP B. Pharm Sem I.pptshraddhaparab530
 
Field Attribute Index Feature in Odoo 17
Field Attribute Index Feature in Odoo 17Field Attribute Index Feature in Odoo 17
Field Attribute Index Feature in Odoo 17Celine George
 
Choosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for ParentsChoosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for Parentsnavabharathschool99
 
USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...
USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...
USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...Postal Advocate Inc.
 
Presentation Activity 2. Unit 3 transv.pptx
Presentation Activity 2. Unit 3 transv.pptxPresentation Activity 2. Unit 3 transv.pptx
Presentation Activity 2. Unit 3 transv.pptxRosabel UA
 
Transaction Management in Database Management System
Transaction Management in Database Management SystemTransaction Management in Database Management System
Transaction Management in Database Management SystemChristalin Nelson
 
AUDIENCE THEORY -CULTIVATION THEORY - GERBNER.pptx
AUDIENCE THEORY -CULTIVATION THEORY -  GERBNER.pptxAUDIENCE THEORY -CULTIVATION THEORY -  GERBNER.pptx
AUDIENCE THEORY -CULTIVATION THEORY - GERBNER.pptxiammrhaywood
 

Recently uploaded (20)

GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTS
GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTSGRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTS
GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTS
 
Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)
 
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
 
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptx
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptxINTRODUCTION TO CATHOLIC CHRISTOLOGY.pptx
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptx
 
4.16.24 21st Century Movements for Black Lives.pptx
4.16.24 21st Century Movements for Black Lives.pptx4.16.24 21st Century Movements for Black Lives.pptx
4.16.24 21st Century Movements for Black Lives.pptx
 
Active Learning Strategies (in short ALS).pdf
Active Learning Strategies (in short ALS).pdfActive Learning Strategies (in short ALS).pdf
Active Learning Strategies (in short ALS).pdf
 
INCLUSIVE EDUCATION PRACTICES FOR TEACHERS AND TRAINERS.pptx
INCLUSIVE EDUCATION PRACTICES FOR TEACHERS AND TRAINERS.pptxINCLUSIVE EDUCATION PRACTICES FOR TEACHERS AND TRAINERS.pptx
INCLUSIVE EDUCATION PRACTICES FOR TEACHERS AND TRAINERS.pptx
 
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptx
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptxQ4-PPT-Music9_Lesson-1-Romantic-Opera.pptx
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptx
 
ANG SEKTOR NG agrikultura.pptx QUARTER 4
ANG SEKTOR NG agrikultura.pptx QUARTER 4ANG SEKTOR NG agrikultura.pptx QUARTER 4
ANG SEKTOR NG agrikultura.pptx QUARTER 4
 
TEACHER REFLECTION FORM (NEW SET........).docx
TEACHER REFLECTION FORM (NEW SET........).docxTEACHER REFLECTION FORM (NEW SET........).docx
TEACHER REFLECTION FORM (NEW SET........).docx
 
YOUVE_GOT_EMAIL_PRELIMS_EL_DORADO_2024.pptx
YOUVE_GOT_EMAIL_PRELIMS_EL_DORADO_2024.pptxYOUVE_GOT_EMAIL_PRELIMS_EL_DORADO_2024.pptx
YOUVE_GOT_EMAIL_PRELIMS_EL_DORADO_2024.pptx
 
Textual Evidence in Reading and Writing of SHS
Textual Evidence in Reading and Writing of SHSTextual Evidence in Reading and Writing of SHS
Textual Evidence in Reading and Writing of SHS
 
Integumentary System SMP B. Pharm Sem I.ppt
Integumentary System SMP B. Pharm Sem I.pptIntegumentary System SMP B. Pharm Sem I.ppt
Integumentary System SMP B. Pharm Sem I.ppt
 
Field Attribute Index Feature in Odoo 17
Field Attribute Index Feature in Odoo 17Field Attribute Index Feature in Odoo 17
Field Attribute Index Feature in Odoo 17
 
FINALS_OF_LEFT_ON_C'N_EL_DORADO_2024.pptx
FINALS_OF_LEFT_ON_C'N_EL_DORADO_2024.pptxFINALS_OF_LEFT_ON_C'N_EL_DORADO_2024.pptx
FINALS_OF_LEFT_ON_C'N_EL_DORADO_2024.pptx
 
Choosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for ParentsChoosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for Parents
 
USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...
USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...
USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...
 
Presentation Activity 2. Unit 3 transv.pptx
Presentation Activity 2. Unit 3 transv.pptxPresentation Activity 2. Unit 3 transv.pptx
Presentation Activity 2. Unit 3 transv.pptx
 
Transaction Management in Database Management System
Transaction Management in Database Management SystemTransaction Management in Database Management System
Transaction Management in Database Management System
 
AUDIENCE THEORY -CULTIVATION THEORY - GERBNER.pptx
AUDIENCE THEORY -CULTIVATION THEORY -  GERBNER.pptxAUDIENCE THEORY -CULTIVATION THEORY -  GERBNER.pptx
AUDIENCE THEORY -CULTIVATION THEORY - GERBNER.pptx
 

Six Sigma: A Statistical Approach to Quality Improvement

  • 1. 1 SIX SIGMA "Delivering Tomorrow's Performance Today" Swati Modi
  • 2. 2 PRESENTATION LAYOUT • Six Sigma: An overview • What is Sigma and Six Sigma? • Why Six Sigma? • Six Sigma Levels • Six Sigma Methodology and Management • Key Roles for Six Sigma • Tools for Six Sigma • Trainings and Certifications • Conclusion
  • 3. 3 • Your first question is likely…. What is Six Sigma? • Your second question is likely… Why Six Sigma?
  • 4. 4 WHAT IS SIGMA ? • A term (Greek) used in statistics to represent standard deviation from mean value, an indicator of the degree of variation in a set of a process. • Sigma measures how far a given process deviates from perfection. Higher sigma capability, better performance
  • 5. 5 WHAT IS SIX SIGMA? • Six Sigma - A highly disciplined process that enables organizations deliver nearly perfect products and services. • The figure of six arrived statistically from current average maturity of most business enterprises • A philosophy and a goal: as perfect as practically possible. • A methodology and a symbol of quality. Contd…
  • 6. 6 WHAT IS SIX SIGMA? • A statistical concept that measures a process in terms of defects – at the six sigma level, there 3.4 defects per million opportunities. Contd… But, it is much more!
  • 7. 7 Six Sigma is not: •A standard •A certification •Another metric like percentage Rather! •It is a Quality Philosophy and the way of improving performance by knowing where you are and where you could be. • Methodology to measure and improve company’s performance, practices and systems WHAT IS SIX SIGMA
  • 8. 8 WHY SIX SIGMA ? • Six Sigma emerged as a natural evolution in business to increase profit by eliminating defects • The Current business environment now demands and rewards innovation more than ever before due to:  Customer Expectations  Technological Change  Global Competition  Market Fragmentation
  • 9. 9 SIGMA LEVELS Sigma Level ( Process Capability) Defects per Million Opportunities 2 308,537 3 66,807 4 6,210 5 233 6 3.4
  • 10. 10 COMPANIES USING Six Sigma is in use in virtually all industries around the world. Some of companies can be listed as: • Motorola • Ericsson • General Electric • Sony • Ford Motor Co. • CITI bank
  • 11. 11 SIX SIGMA METHODOLOGY (It takes money to save money) • BPMS Business Process Management System • DMAIC Six Sigma Improvement Methodology • DMADV Creating new process which will perform at Six Sigma
  • 12. 12 BUSINESS PROCESS MANAGEMENT SYSTEM: • BPM strategies emphasize on process improvement and automation to derive performance • Combining BPM strategies with sigma six is most powerful way to improve performance • Both strategies are not mutually exclusive but some companies produced dramatic results by combining them.
  • 13. 13 WHAT IS DMAIC? (Define,Measure,Analyse,Improve.Control) • A logical and structured approach to problem solving and process improvement. • An iterative process (continuous improvement) • A quality tool which focus on change management style.
  • 14. 14 PHASES Phases of Six Sigma are: – Define specific goals to achieve outcomes, consistent with customers demand and business strategy – Measure reduction of defects – Analyze problems ,cause and effects must be considered – Improve process on bases of measurements and analysis – Control process to minimize defects
  • 15. 15 WHAT IS DMADV? • Acronym for:  Define the project  Measure the opportunity  Analyze the process options  Design the process  Verify the performance
  • 16. 16 WHEN SHOULD SIX SIGMA BE USED? Its usage depends on the type of business. In general, “If there are processes that generate a lot of negative customer feedback, whether that customer is internal or external, the components of Six Sigma should be considered as a means to study and rectify the problem.”
  • 17. 17 BENEFITS OF SIX SIGMA • Generates sustained success • Sets performance goal for everyone • Enhances value for customers • Accelerates rate of improvement • Promotes learning across boundaries • Executes strategic change
  • 19. 19 SIX SIGMA MANAGEMENT When practiced as a management system, Six Sigma is a high performance system for executing business strategy. Six Sigma is a top down solution to help organizations: • Align their business strategy to critical improvement efforts • Mobilize teams to attack high impact projects • Accelerate improved business results • Govern efforts to ensure improvements are sustained
  • 20. 20 KEY ROLES FOR SIX SIGMA Six Sigma identifies several key roles for its successful implementation: • Executive leadership • Champions • Master Black Belts (Identify projects& functions) • Black Belts (Identify non value added activities) • Green Belts ( works on small projects ) Top Bottom
  • 21. 21 TOOLS & TECHNIQUES • 7QC tools  Check Sheets (collect data to make improvements)  Pareto Charts( define problem and frequency)  Cause and effect diagram (Identify possible causes to solve problem)  Histogram (Bar charts of accumulated data to evaluate distribution of data)  Scatter diagram (plots many data points and pattern between two variables)  Flow Chart (Identify unwanted steps)  Control charts (Control limits around mean value)
  • 22. 22 TRAININGS & CERTIFICATIONS If you want to make yourself more valuable and attractive to employers then get training and certification • Option I – Certification as Six Sigma Green Belt • Option II – Certification as Six Sigma Black Belt
  • 23. 23 CONCLUSION Six Sigma is methodology used for: • Aligning key business processes to achieve those requirements. • Utilizing rigorous data analysis to minimize data variation in those processes. • Driving rapid and sustainable improvement to business processes.
  • 26. 26
  • 27. 27
  • 28. 28
  • 29. 29
  • 30. 30
  • 31. 31
  • 32. 32
  • 33. 33
  • 34. 34
  • 35. 35
  • 36. 36
  • 37. 37
  • 38. 38
  • 39. 39
  • 40. 40
  • 41. 41
  • 42. 42
  • 43. 43
  • 44. 44
  • 45. 45
  • 46. 46
  • 47. 47
  • 48. 48
  • 49. 49
  • 50. 50
  • 51. 51
  • 52. 52
  • 53. 53
  • 54. 54
  • 55. 55
  • 56. 56