| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1840 |
63%
|
| 2 | Seldom | 353 |
12.1%
|
| 3 | Occasionally | 295 |
10.1%
|
| 4 | Quite often | 143 |
4.9%
|
| 5 | Very often | 63 |
2.2%
|
| 8 | Cannot choose | 225 |
7.7%
|
| Sysmiss | 20 |