| Value | Category | Cases | |
|---|---|---|---|
| -95 | Refused | 0 |
0%
|
| 0 | Never | 665 |
42.7%
|
| 1 | Once | 498 |
31.9%
|
| 2 | From time to time | 340 |
21.8%
|
| 3 | Often | 24 |
1.5%
|
| r | 32 |
2.1%
|
|
| Sysmiss | 1176 |