| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, THE ENTIRE QUESTIONNAIRE | 87 |
1.7%
|
| 2 | YES, PARTS OF THE QUESTIONNAIRE | 31 |
0.6%
|
| 3 | NO, NOT USED | 4409 |
84.4%
|
| Sysmiss | 699 |
13.4%
|