| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 76 |
4.3%
|
| 2 | 1 to 2 months | 123 |
7%
|
| 3 | 3 to 6 months | 203 |
11.5%
|
| 4 | 7 to 11 months | 159 |
9%
|
| 5 | 1-2 years | 378 |
21.5%
|
| 6 | 3 or more years | 819 |
46.6%
|
| Sysmiss | 43284 |