| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always | 453 |
15.2%
|
| 2 | Often | 63 |
2.1%
|
| 3 | Not often | 22 |
0.7%
|
| 4 | Not needed | 2230 |
75%
|
| 5 | No | 206 |
6.9%
|
| Sysmiss | 1459 |