| Value | Category | Cases | |
|---|---|---|---|
| -9 | do not know | 7 |
5.6%
|
| 1 | less then one month | 33 |
26.6%
|
| 2 | 18 |
14.5%
|
|
| 3 | 21 |
16.9%
|
|
| 4 | 11 |
8.9%
|
|
| 5 | 6 |
4.8%
|
|
| 6 | 10 |
8.1%
|
|
| 7 | 5 |
4%
|
|
| 8 | 3 |
2.4%
|
|
| 9 | 4 |
3.2%
|
|
| 10 | 1 |
0.8%
|
|
| 11 | 2 |
1.6%
|
|
| 12 | 3 |
2.4%
|
|
| Sysmiss | 117 |