| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. never | 2234 |
51.2%
|
| 2 | 2. once | 785 |
18%
|
| 3 | 3. two or three times | 749 |
17.2%
|
| 4 | 4. more often | 499 |
11.4%
|
| 77 | 77. d/r | 0 |
0%
|
| 99 | 99. missing | 94 |
2.2%
|
| Sysmiss | 177 |