| Value | Category | Cases | |
|---|---|---|---|
| 0 | 00 not used at all | 219 |
13.9%
|
| 1 | 01 | 17 |
1.1%
|
| 2 | 02 | 62 |
3.9%
|
| 3 | 03 | 52 |
3.3%
|
| 4 | 04 | 66 |
4.2%
|
| 5 | 05 | 137 |
8.7%
|
| 6 | 06 | 98 |
6.2%
|
| 7 | 07 | 123 |
7.8%
|
| 8 | 08 | 189 |
12%
|
| 9 | 09 | 51 |
3.2%
|
| 10 | 10 used a lot | 79 |
5%
|
| 98 | 98 don't know | 0 |
0%
|
| 99 | 99 no answer | 0 |
0%
|
| Sysmiss | 485 |
30.7%
|