| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 24 |
0.5%
|
| 2 | 1 to 3 months, | 81 |
1.8%
|
| 3 | 4 to 6 months | 239 |
5.4%
|
| 4 | 7 to 11months, | 292 |
6.6%
|
| 5 | 1 to 2 years | 1365 |
30.8%
|
| 6 | 3 or more years | 2425 |
54.8%
|
| Sysmiss | 39254 |