A compilation of various statistical presentations from a special library

1. Communication with customers: A statistical
M S Sridhar
Head, Library & Documentation
ISRO Satellite Centre
Bangalore 560 017
E-mail: sridhar@isac.gov.in
of a special library

2. 19887
4477
4047
1328
897 726 557 447 348 286 290
1524
0
5000
10 0 0 0
15 0 0 0
20000
25000
0 1 2 3 4 5 6 7 8 9 10 >10
No. of times borrowed
No. of books
No. times borrwed in 3.5 yrs No. of books % Cumulative %
0 19887 57.12 57.12
1 4477 12.56 69.68
2 4047 11.93 81.61
3 1328 3.81 85.42
4 897 2.57 87.99
5 726 2.02 90.1
6 557 1.58 91.68
7 447 1.28 92.96
8 348 1 93.96
9 286 0.92 94.78
10 290 0.84 95.62
>10 1524 4.38 100
Statistical miscellany – M S Sridhar, Head, LDD
Frequency of borrowed use of books

3. Statistical miscellany - 1 M S Sridhar, Head, LDD (April 16, ’02)
Use of library books
RANK GRP MEM BKS AVERAGE
/PROJ BERS LENT
1 TPD 19 511 26.89
2 MDG 118 2810 23.81
3 CIG 49 1156 23.59
4 PPEG 27 604 22.37
5 SMG 50 1098 21.96
6 CSG 115 2380 20.70
7 STG 73 1471 20.15
8 CMG 88 1683 19.13
9 TSG 103 1913 18.57
10 SRG 137 2528 18.45
11 AITG 188 3288 17.49
12 DSG 95 1612 16.97
13 ICG 92 1486 16.15
14 PSG 113 1719 15.21
15 IRS 42 622 14.81
16 INSAT 37 521 14.08
17 FAC 419 3042 7.26
18 DDs,... 18 85 4.72
19 LEOS 110 394 3.58
20 ADMN 296 947 3.20
Sub-total 2189 29870 13.65
OTHERS 41 345 8.41
LPSC 144 252 1.75
TOTAL 2374 30467 12.83
0 500 1000 1500 2000 2500 3000 3500
TPD
MDG
CIG
PPEG
SMG
CSG
STG
CMG
TSG
SRG
AITG
DSG
ICG
PSG
IRS
INSAT
FACILITY
DDS,ETC.
LEOS
ADMN
NO. OF BOOKS BORROWED PER YEAR

4. Statistical miscellany –2 M S Sridhar, Head, LDD(May 1, 02) Suggestions for new books
GP/PR2000-101-202-03
AITG48223
CIG37491
CMG24173
CSG100595
DSG1150
ICG1260
MDG1260
PSG660
PPEG19153
SMG440
SRG115550
STG36314
TSG35173
TPD39406
FACILITY20101
INSAT020
IRS800
DDs, etc.92010
LEOS010
ADMN, etc.0220
TOTAL53538739
AITGCIGCMGCSGDSGICGMDGPSGPPEGSMGSRGSTGTSGTPDFACILITYINSATIRSDDs, etc. LEOSADMN, etc. 0204060801001201402000-12001-22002-3(1stQ) NO. OF BOOKS SUGGESTED

5. Statistical miscellany –3M S Sridhar, Head, LDDISAC authors well cited internationally!
No. of times cited
No. of articles
Total citations
89
1
89
58
1
58
38
1
38
36
1
36
20
1
20
18
1
18
16
2
32
15
2
30
12
1
12
10
3
30
9
2
18
8
3
24
7
3
21
6
5
30
5
9
45
4
10
40
3
11
33
2
15
30
1
40
40
Total
112
644
•SCI* covered 269 journal articles of ISAC authors
•112 ISAC papers have been cited 644 times in international journals (Average or Impact Factor: 2.39) --------------------------------------------------- * Science Citation Index of Institute for Scientific Information, USANote: SCI does not cover all journals
Authors/ co-authors of ISAC papers having 15 or more citations : KASTURIRANGAN K;
MARAR TMK;
SEETHA S;
ASHOKA BN;
JAIN AK;
SHARMA AK
NAGENDRA CL;
THUTUPALLI GKM;
REDDY MR

6. Statistical miscellany –4 M S Sridhar, Head, LDDInternal reportsproduced & archivedYEAR-WISE PRODUCTION
TOTAL:
PRODUCED: 2172
ARCHIVED : 1933
20523623827132539444063010020030040050019951996199719981999200020012002(MAR) 2651168613737214136237934223815873997392172881249814540260137358637226116674011578217AITGCIGCMGCSGDSGICGMDGPSGPPEGSMGSRGSTGTSGTPDFACILITYINSATIRSLEOSOTHERS0100200300400PRODUCEDARCHIVED

7. Statistical miscellany –5 M S Sridhar, Head, LDD
Holdings of ISRO libraries
37550
18000
12000
32750
26250
57000
129000
14000
3000
47000
16100
122000
21750
7150
15000 12150
37000
2000
0
20000
40000
60000
80000
100000
120000
140000
ISAC ISRO HQ NRSA SAC SHAR VSSC
BOOKS REPORTS BOUND JLS
CENTRE BOOKS REPORTS BD JLS
ISAC 37550 129000 21750
ISRO HQ 18000 14000 2000
NRSA 12000 3000 7150
SAC 32750 47000 15000
SHAR 26250 16100 12150
VSSC 57000 122000 37000
TOTAL 183550 331100 95050

8. 0
2000
4000
6000
8000
10000
12000
Compute r Science
Te le communication
Ele ctronics
Management
Mathematics
Ele ctrical engine e ring
Medical Science s
Mate rial s te sting, e tc.,
Physics and Me chanics
Air and space transport engg.
Control the ory
Astronomy
Manufacture s, industrie s, e tc.,
Chemi stry, Ge ology, Biology, e tc.
USE/ YR.
COLLECT ION
RANK SUBJECT USE/ COLLEC RATIO OF
YEAR TION USE TO COLN
1 Computer Science 11141 7314 1.52
2 Telecommunication 2372 2144 1.11
3 Electronics 3463 3314 1.04
4 Management 1133 1102 1.03
5 Mathematics 1515 1545 0.98
6 Electrical engineering 1917 2233 0.86
7 Medical Sciences 359 504 0.71
8 Materials testing, etc., 682 1048 0.65
9 Physics and Mechanics 1999 3147 0.64
10 Air and space transport engg. 1519 2774 0.55
11 Control theory 462 1038 0.45
12 Astronomy 657 2020 0.33
13 Manufactures, industries, etc., 251 854 0.29
14 Chemistry, Geology, Biology,… 228 915 0.25
Statistical miscellany –6 M S Sridhar, Head, LDD (July 1, 2002)
Subject-wise collection & lent-out use of books

9. Statisticalmiscellany –7 M S Sridhar, Head, LDD(July 16, 2002) Growth of ISAC Libraryyearmembers documentscurrent jlsusearea1975285 2300 72 800 8001987 1800114000 582 142000 80002000 2272 200000 493 240000 18000285180022722311402000725824938014202400808001800membersdocs in '00current jlsuse in'00area in '0 sq. ft. 050010001500200025003000YR. 1975YR. 1987YR. 2000

10. Statistical miscellany – 8 M S Sridhar, Head, LDD (August 1, 2002)
Journals & reports are less used than before (1982)
ST ANDAR
DS
0. 6%
NON-BOOK
MAT ERI A
LS
1 . 6%
REPORT S
1 . 2%
JOURNAL
S
1 2. 3%
BOOKS
84. 3%
% of total borrowing increase/
NOW (2002) THEN (1982) decrease
BOOKS 84.3 80.0 + 4.3
REPORTS 1.2 5.0 - 3.8
JOURNALS 12.3 14.8 - 2.5
STANDARDS 0.6 0.2 + 0.4
NON-BOOK 1.6 0.0 + 1.6
MATERIALS
Percentage of total lent-out use
14.8
0.2 0
5.0
80.0
84.3
1.2
12.3
0.6 1.6
0
10
20
30
40
50
60
70
80
90
BOOKS REPORTS JOURNALS STANDARDS NON-BOOK
M ATERIALS
THEN (1982) NOW (2002)
2002

11. Statistical miscellany – 9 M S Sridhar, Head, LDD (August 16, 2002)
Reduction in journals subscribed and reports added over
the years
0
200
400
600
800
1000
1200
1980 1985 1990 1995 2000 2002
Reports (annual intake)
Journals (subscribed)
Reports Journals
Year (annual intake) (subscribed)
1980 1063 533
1985 936 519
1990 523 444
1995 288 416
2000 67 326
2002 29 300

12. Statistical miscellany - 10 M S Sridhar, Head, LDD (Sep. 1, ’02)
Journals and reports are more used (and cited in
JST) by ISAC authors than others
84.3%
1.2%
12.3% 2.2%
% lent out
33.3%
25.7%
35.1%
5.9%
% cited
books
reports
j ournals
others
•In other words, journals & reports
are less borrowed than books but
more cited in JST (Journal of
Spacecraft Technology)
•E-version of JST accessible at
http://www.j-gate.informindia.co.in
Documents % Borrowed % Cited
Books 84.3 33.3
Reports 1.2 25.7
Journals 12.3 35.1
Others 2.2 5.9
Total 100 100

13. Statistical miscellany-11 M S Sridhar, Head, LDD (Sep 16, ’02)
Percentage of time spent on print medium remained
same over the years - National Readership Survey
TV
72.0%
RADIO
11.0%
INTERNET
1.0%
PRINT
16.0%
2001
TV
RADIO
INTERNET
PRINT
0
10
20
30
40
50
60
70
80
1995(%)
2001(%) Note: 2001 survey had 212,000
adult respondents; average
urban Indian spends 2 hrs a day
on media consumption
1995(%) 2001(%)
TV 62 72
RADIO 22 11
INTERNET 0 1
PRINT 16 16

14. Statisticalmiscellany-12M S Sridhar, Head, LDD(Oct. 1, ’02) Subject-wise misplacement / loss of books(for a period of 3 years & 3 months)
752116149865441939834123416578213230100200300400500Computer Science Electronics & El EnggPhy & AstronomySpace Science Management Mech. & Civil Engg. Mathematics Medical Science Telecommunication Building ind., arts, etc. Other subjectsValuein '00(Rs.) No. RankSubjectNo.%Value(Rs.)% 1Computer Science 7541.43982472.12Electronics & El Engg.2111.633696.13Phy & Astronomy168.811632.14Space Science 147.734396.25Management 95.015862.96Mech. & Civil Engg.84.45431.07Mathematics 63.36711.28Medical Science 52.87661.49Telecommunication 42.21820.39ABuilding ind., arts, etc.42.213222.4Other subjects1910.523454.2Total 181100.055210100.0

15. Statistical miscellany –13 M S Sridhar, Head, LDD (Oct. 16, ’02)
Web Characterisation & use surveys
1. the ‘invisible’ or ‘deep’ web is over
500 times larger than ‘surface’ web
2. 25000 'mega sites' represent 50%
contents
3. mean size of a public site is > 130
pages
4. no engine is indexing > 16% 0f
publicly accessible sites
5. over 8000 search engines; >800 m
pages ; >8 m sites
Effectiveness of sites
clearly
designed
sites
2%
brochure
w are
sites
40%
no sites
found
58%
T ype o f sites
Pr ivate
21%
Pr ovisional
38%
Publ ic
41%
38
7
8
10
3
0 1 0 2 0 3 0 4 0
e-mail
general
informatio n
academic
informatio n
chat
jo b related
informatio n
Internet use in India
• ½ hr to 2 hrs per day (av: 86.1 min.)
• 97% for e-mail purpose
• top of mind recall : yahoo 22%
hotmail 13%
% of time spent

16. Statistical miscellany –14M S Sridhar, Head, LDD(Nov. 1, ’02} Test reports are maximum among types of internal reportsgenerated
INTERNAL REPORTSSL. NO.TYPENO. A. CENTRE REPORTS1GR602TR6023ST83SUB TOTAL745B. PROJECT REPORTS4RR2695TE7726AR2547 PR326SUB TOTAL1621TOTAL2366Type of reports produced606028326977225432602004006008001000General rep. Technical repStandardsReview repTest repAnalysis repProject repInternal reports produced (30 Sep. '02) CENTRE 31% PROJECTS69%

17. Statistical miscellany –15M S Sridhar, Head, LDD ( Nov. 18, ’02) Online Public Access Catalogues (OPACs) of ISRO libraries put together have 7 lakh records
CENTRE OPAC
ISAC200000
ISRO HQ35000
NRSA25000
SAC145000
SHAR62000
VSSC230000
TOTAL 697000
OPACs of ISRO LibrariesISAC29% VSSC32% SHAR9% SAC21% NRSA4% ISRO HQ5%

18. Statistical miscellany – 16 M S Sridhar, Head, LDD (Dec. 1, ’02)
Biggest Libraries of the World (Volumes in millions)
23
1 6
1 4. 5
1 4. 4
1 3
1 2. 9
1 1 . 8
1 1 . 3
1 0. 5
9. 5
3
0 5 1 0 1 5 20 25
Li br ar y of Congr ess
Nat i onal Li br ar y of Chi na
Nat i onal Li br ar y of Canada
Deut sch bi bl i ot ek (Ger many)
Br i t i sh Li br ar y
Har var d Uni ver si t y Li br ar y
Russi an St at e Li br ar y
Nat i onal Di et Li br ar y ( Japan)
New Yor k Publ i c Li br ar y
Yal e Uni vi ver si t y Li br ar y
Nat i onal l i br ar y of I ndi a
RANK NAME PLACE VOLS IN M
1 Llibrary of congress Wash, DC 23
2 N.L. of China Beijing 16
3 N.L. of Canada Ottawa 14.5
4 Deutsch bibliotek Frankfurt 14.4
5 British Library London 13.0
6 Harvard University Cambridge 2.9
7 Russian State Library Moscow 11.8
8 Nat.Diet Library Tokyo 11.3
9 New York Pub. Lib. New York 10.5
10 Yale Univ. Library New Heron 9.5
Note: Indian National library claims to
have several million items
including 3 m books

19. Statistical miscellany – 17 M S Sridhar, Head, LDD (Dec16, ’02)
Citing habits of ISAC authors
No references With references
Internal reports* 119 99
Papers in JST@ 18 96
INTERNAL REPORTS*
NOT HAVING REFERENCES
HAVING ONE OR MORE REFERENCES
PAPERS IN JST@
*Checked 10 % systematic
random sample; @ Checked
all 114 papers in 13 issues
from 91-97
No
references
(59.4%)
No
references
(15.8%)
(655 references
In 119 reports)
(844 references
In 96 ppers)

20. Statistical miscellany –18 M S Sridhar, Head, LDD (Jan 1, ’03)
Reservations for books
AIT G
CIG
CMG
CSG
DSG
ICG
MDG
P SG
P P E G
SMG
SRG
ST G
T SG
T P D
FACILIT Y
INSAT
IRS
OT HE R P r .
DDs , e t c .
LE OS
ADMN, e t c .
OT HE RS
0 2 0 0 4 0 0 6 0 0
Rank Gr./ Pr. Res./yr. Members Average
1 DSG 518 95 5.5
2 CIG 253 49 5.2
3 CSG 440 115 3.8
4 PPEG 102 27 3.8
5 SMG 183 50 3.7
6 TPD 67 19 3.5
7 SRG 442 137 3.2
8 AITG 495 188 2.6
9 STG 181 73 2.5
10 MDG 279 118 2.4
11 PSG 262 113 2.3
12 CMG 188 88 2.1
13 ICG 174 92 1.9
14 INSAT 62 37 1.7
15 IRS 62 42 1.5
16 TSG 141 103 1.4
17 DDs 17 18 0.9
18 Facility 306 419 0.7
19 Others 108 185 0.6
20 ADMN 93 296 0.3
21 LEOS 26 110 0.2
Total 4399 2374 1.9
Over one
year

21. 4168
61
1976
14741016762148
1351
206
57
54
393343
19
2530
22Statistical miscellany –19M S Sridhar, Head, LDD(Feb 6, ’05) Visit to Library Homepage during August 2004

23. References
1. Anderson, T W and Sclove, Stanley L. An introduction to the statistical analysis of data. Boston : Houghton Miffin Company, 1978.
2.Best,Joel.Damnedliesandstatistics.California:UniversityofCaliforniaPress,2001.
3.Best,Joel.Moredamnedliesandstatistics;hownumbersconfusepublicissues.Berkeley:UniversityofCaliforniaPress,2004
4.Koosis,DonaldJ.Basenessstatistics.NewYork:JohnWiley,1972.
5.Miller,JaneE.TheChicagoguidetowritingaboutnumbers.Chicago:theUniversityofChicagoPress,2004.
6.Rodger,LeslieW.Statisticsformarketing.London:Mc-GrawHill,1984.
7.Salvatoe,Dominick.Theoryandproblemsofstatisticsandeconometrics(Schaum‟soutlineseries).NewYork: McGraw-Hill,1982.
8.Simpson,I.S.Howtointerpretstatisticaldata:aguideforlibrariansandinformationscientists.London:LibraryAssociation,1990.
9.Sridhar,MS."Userparticipationincollectionbuildinginaspeciallibrary:acasestudy."IASLICBulletin28(3) September1983:117-122.
10. Sridhar, M S. "Book procurement delay : a de-motivator to user participation in collection development". In : Building Library Collections and National Policy for Library and Information Services : Seminar Papers presented in XXX All India Library Conference, Rajasthan University, Jaipur, 28-31 January 1985. ed. by P.B.Mangala. Delhi: ILA, 1985. 329-334.
11. Sridhar, M S. "Library-use index and library-interaction index as measures of effectiveness of a special library : a case study." In : Proceedings of XXXIV All India Library Conference on Library and Information Services : Assessment and Effectiveness. Calcutta : ILA, 1988 : 449-465.
12. Sridhar, M S. "Library use and user research: with twenty case studies". New Delhi: Concept Publishing Company, 2002.
13. Sridhar, M S. “OPAC vs. card catalogue : a comparative study of user behaviour” , The Electronic Library, 22 (2) April 2004, p 175 -183.
14. Sridhar, M S. “Subject searching in the OPAC of a special library: problems and issues”, OCLC Systems and Services: International Digital Library Perspectives, 20 (4) Winter 2004, p 183 -191. References

24. About the AuthorDr.M.S.Sridharisapostgraduateinmathematicsandbusinessmanagementandadoctorateinlibraryandinformationscience.Heisintheprofessionforlast35years.Since1978heisheadingtheLibraryandDocumentationDivisionofISROSatelliteCentre,Bangalore.EarlierhehasworkedinthelibrariesofNationalAeronauticalLaboratory(Bangalore),IndianInstituteofManagement(Bangalore)andUniversityofMysore.Dr.Sridharhaspublishedfourbooks(„Userresearch:areviewofinformation-behaviourstudiesinscienceandtechnology‟, „Problemsofcollectiondevelopmentinspeciallibraries‟,„Informationbehaviourofscientistsandengineers‟and„Useanduserresearchwithtwentycasestudies‟)and74researchpapers,written19coursematerialforBLISandMLIS,presentedover22papersinconferencesandseminars,andcontributed5chapterstobooks.E-mail: sridharmirle@yahoo.com,mirlesridhar@gmail.com,sridhar@isac.gov.in;Phone: 91-80-25084451;Fax:91-80-25084475.