This document appears to be data from a study related to CADCAM. It includes numbers that may represent metrics like number of drawings, dates of approval, amounts of time spent on different stages of design like design, checking, and title. The numbers suggest some level of analysis was done related to CAD practice drawings.

1. STUDY CADCAM
http://www.studycadcam.com 52
ApproveDate
Design
Check
Title
CAD Practice Drawings 52
152
82
19
19
22.8
6
19
75
38