| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than one month | 37 |
60.7%
|
| 2 | 1-2 months | 10 |
16.4%
|
| 3 | 2-6 months | 3 |
4.9%
|
| 4 | more than 6 months | 4 |
6.6%
|
| 5 | 6-12 months | 0 |
0%
|
| 6 | 1-2 years | 4 |
6.6%
|
| 7 | more than 2 years | 2 |
3.3%
|
| 8 | more than 10 years | 1 |
1.6%
|
| Sysmiss | 756 |