| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 34 |
0.9%
|
| 2 | 1 to 3 months, | 82 |
2.1%
|
| 3 | 4 to 6 months | 157 |
4%
|
| 4 | 7 to 11months, | 250 |
6.3%
|
| 5 | 1 to 2 years | 1175 |
29.7%
|
| 6 | 3 or more years | 2264 |
57.1%
|
| Sysmiss | 26645 |