| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 2 |
0.3%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 1 | rarely (1-2 times) | 359 |
48.3%
|
| 2 | sometimes (3-10 times) | 311 |
41.9%
|
| 3 | often (more than 10 times) | 71 |
9.6%
|
| Sysmiss | 1283 |