| Value | Category | Cases | |
|---|---|---|---|
| 1 | always | 1159 |
10.1%
|
| 2 | often | 236 |
2.1%
|
| 3 | not often | 105 |
0.9%
|
| 4 | not needed | 7265 |
63.3%
|
| 5 | no | 2705 |
23.6%
|
| Sysmiss | 2897 |