| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 not used at all | 615 |
40.9%
|
| 1 | 1 | 57 |
3.8%
|
| 2 | 2 | 33 |
2.2%
|
| 3 | 3 | 32 |
2.1%
|
| 4 | 4 | 33 |
2.2%
|
| 5 | 5 | 47 |
3.1%
|
| 6 | 6 | 30 |
2%
|
| 7 | 7 | 20 |
1.3%
|
| 8 | 8 | 12 |
0.8%
|
| 9 | 9 | 2 |
0.1%
|
| 10 | 10 used a lot | 16 |
1.1%
|
| 98 | 98 don't know | 4 |
0.3%
|
| 99 | 99 no answer | 18 |
1.2%
|
| Sysmiss | 583 |
38.8%
|