| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, ENTIRE QUESTIONNAIRE | 13 |
0.3%
|
| 2 | YES, PART OF QUESTIONNAIRE | 9 |
0.2%
|
| 3 | NO, NOT USED | 4060 |
85%
|
| Sysmiss | 695 |
14.5%
|