| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 1374 |
70%
|
| 2 | Per week | 19 |
1%
|
| 3 | Per month | 115 |
5.9%
|
| 4 | Per year | 455 |
23.2%
|
| 99 | N/A | 0 |
0%
|
| Sysmiss | 34 |