| Value | Category | Cases | |
|---|---|---|---|
| 0 | less than one month | 0 |
0%
|
| 1 | 8 |
3.3%
|
|
| 2 | 20 |
8.2%
|
|
| 3 | 13 |
5.3%
|
|
| 4 | 16 |
6.5%
|
|
| 5 | 4 |
1.6%
|
|
| 6 | 15 |
6.1%
|
|
| 7 | 2 |
0.8%
|
|
| 8 | 6 |
2.4%
|
|
| 10 | 4 |
1.6%
|
|
| 12 | 145 |
59.2%
|
|
| 98 | don't know | 12 |
4.9%
|
| 99 | refused | 0 |
0%
|
| Sysmiss | 4660 |