| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than one month | 86 |
4.8%
|
| 2 | 1-3 months | 623 |
34.4%
|
| 3 | 4-6 months | 445 |
24.6%
|
| 4 | 7-12 months | 299 |
16.5%
|
| 5 | 13-18 months | 63 |
3.5%
|
| 6 | 19-24 months | 67 |
3.7%
|
| 7 | 25-36 months | 53 |
2.9%
|
| 8 | More than 3 years | 173 |
9.6%
|
| Sysmiss | 31598 |