| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, THE ENTIRE QUESTIONNAIRE | 1410 |
6.3%
|
| 2 | YES, PARTS OF THE QUESTIONNAIRE | 427 |
1.9%
|
| 3 | NO, NOT USED | 20615 |
91.8%
|
| Sysmiss | 254 |