| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 3 months | 2251 |
38.3%
|
| 2 | 3 to less than 6 months | 744 |
12.7%
|
| 3 | 6 to less than 12 months | 445 |
7.6%
|
| 4 | 1 year or more | 2437 |
41.5%
|
| Sysmiss | 55012 |