| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, ENTIRE QUESTIONNAIRE | 6 |
0.1%
|
| 2 | YES, PART OF QUESTIONNAIRE | 19 |
0.3%
|
| 3 | NO, NOT USED | 5099 |
77.8%
|
| Sysmiss | 1432 |
21.8%
|