| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, ENTIRE QUESTIONNAIRE | 2270 |
11.2%
|
| 2 | YES, PART OF QUESTIONNAIRE | 177 |
0.9%
|
| 3 | NO, NOT USED | 17767 |
87.9%
|
| Sysmiss | 307 |