| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 not used at all | 120 |
7.9%
|
| 1 | 1 | 22 |
1.4%
|
| 2 | 2 | 50 |
3.3%
|
| 3 | 3 | 54 |
3.6%
|
| 4 | 4 | 55 |
3.6%
|
| 5 | 5 | 158 |
10.4%
|
| 6 | 6 | 108 |
7.1%
|
| 7 | 7 | 127 |
8.4%
|
| 8 | 8 | 214 |
14.1%
|
| 9 | 9 | 36 |
2.4%
|
| 10 | 10 used a lot | 121 |
8%
|
| 98 | 98 don't know | 0 |
0%
|
| 99 | 99 no answer | 1 |
0.1%
|
| Sysmiss | 453 |
29.8%
|