| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, THE ENTIRE QUESTIONNAIRE | 318 |
5.8%
|
| 2 | YES, PARTS OF THE QUESTIONNAIRE | 11 |
0.2%
|
| 3 | NO, NOT USED | 4148 |
75.2%
|
| Sysmiss | 1036 |
18.8%
|