| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, THE ENTIRE QUESTIONNAIRE | 31 |
1.6%
|
| 2 | YES, PARTS OF THE QUESTIONNAIRE | 8 |
0.4%
|
| 3 | NO, NOT USED | 1751 |
91.6%
|
| Sysmiss | 122 |
6.4%
|