| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than one month | 481 |
6.5%
|
| 2 | 1-3 months | 2794 |
38%
|
| 3 | 4-6 months | 1675 |
22.8%
|
| 4 | 7-12 months | 1037 |
14.1%
|
| 5 | 13-18 months | 273 |
3.7%
|
| 6 | 19-24 months | 242 |
3.3%
|
| 7 | 25-36 months | 232 |
3.2%
|
| 8 | More than 3 years | 621 |
8.4%
|
| Sysmiss | 122929 |