| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 13 |
7.6%
|
| 2 | Monthly | 20 |
11.7%
|
| 3 | A few times a year | 75 |
43.9%
|
| 4 | Rarely | 45 |
26.3%
|
| 5 | Never | 14 |
8.2%
|
| -99 | 3 |
1.8%
|
|
| 11 | 1 |
0.6%
|
|
| Sysmiss | 20 |