| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 not used at all | 191 |
12.6%
|
| 1 | 1 | 31 |
2%
|
| 2 | 2 | 45 |
3%
|
| 3 | 3 | 62 |
4.1%
|
| 4 | 4 | 66 |
4.4%
|
| 5 | 5 | 137 |
9.1%
|
| 6 | 6 | 119 |
7.9%
|
| 7 | 7 | 133 |
8.8%
|
| 8 | 8 | 193 |
12.8%
|
| 9 | 9 | 58 |
3.8%
|
| 10 | 10 used a lot | 86 |
5.7%
|
| 98 | 98 don't know | 1 |
0.1%
|
| 99 | 99 no answer | 2 |
0.1%
|
| Sysmiss | 389 |
25.7%
|