| Value | Category | Cases | |
|---|---|---|---|
| 0 | 00 not used at all | 460 |
29.2%
|
| 1 | 01 | 59 |
3.7%
|
| 2 | 02 | 78 |
5%
|
| 3 | 03 | 71 |
4.5%
|
| 4 | 04 | 66 |
4.2%
|
| 5 | 05 | 151 |
9.6%
|
| 6 | 06 | 63 |
4%
|
| 7 | 07 | 47 |
3%
|
| 8 | 08 | 36 |
2.3%
|
| 9 | 09 | 2 |
0.1%
|
| 10 | 10 used a lot | 21 |
1.3%
|
| 98 | 98 don't know | 5 |
0.3%
|
| 99 | 99 no answer | 1 |
0.1%
|
| Sysmiss | 515 |
32.7%
|