| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 not used at all | 128 |
8.5%
|
| 1 | 1 | 23 |
1.5%
|
| 2 | 2 | 51 |
3.4%
|
| 3 | 3 | 65 |
4.3%
|
| 4 | 4 | 62 |
4.1%
|
| 5 | 5 | 175 |
11.6%
|
| 6 | 6 | 97 |
6.4%
|
| 7 | 7 | 138 |
9.1%
|
| 8 | 8 | 216 |
14.3%
|
| 9 | 9 | 41 |
2.7%
|
| 10 | 10 used a lot | 126 |
8.3%
|
| 98 | 98 don't know | 1 |
0.1%
|
| 99 | 99 no answer | 1 |
0.1%
|
| Sysmiss | 389 |
25.7%
|