| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 45 |
1.1%
|
| 2 | 1 to 3 months, | 96 |
2.3%
|
| 3 | 4 to 6 months | 191 |
4.6%
|
| 4 | 7 to 11months, | 298 |
7.1%
|
| 5 | 1 to 2 years | 1188 |
28.3%
|
| 6 | 3 or more years | 2377 |
56.7%
|
| Sysmiss | 40219 |