| Value | Category | Cases | |
|---|---|---|---|
| 0 | 00 not used at all | 810 |
51.4%
|
| 1 | 01 | 58 |
3.7%
|
| 2 | 02 | 37 |
2.3%
|
| 3 | 03 | 37 |
2.3%
|
| 4 | 04 | 23 |
1.5%
|
| 5 | 05 | 27 |
1.7%
|
| 6 | 06 | 18 |
1.1%
|
| 7 | 07 | 14 |
0.9%
|
| 8 | 08 | 12 |
0.8%
|
| 9 | 09 | 10 |
0.6%
|
| 10 | 10 used a lot | 10 |
0.6%
|
| 98 | 98 don't know | 3 |
0.2%
|
| 99 | 99 no answer | 1 |
0.1%
|
| Sysmiss | 515 |
32.7%
|