| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, THE ENTIRE QUESTIONNAIRE | 19 |
0.5%
|
| 2 | YES, PARTS OF THE QUESTIONNAIRE | 8 |
0.2%
|
| 3 | NO, NOT USED | 3650 |
97.9%
|
| 9 | NO RESPONSE | 5 |
0.1%
|
| Sysmiss | 47 |
1.3%
|