| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 7 |
0.5%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 1 | rarely (1-2 times) | 189 |
14.6%
|
| 2 | sometimes (3-10 times) | 550 |
42.5%
|
| 3 | often (more than 10 times) | 547 |
42.3%
|
| Sysmiss | 733 |