| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 64 |
6.1%
|
| 2 | 1 month but less than 3 months | 101 |
9.6%
|
| 3 | 3 months but less than 6 months | 144 |
13.6%
|
| 4 | 6 months but less than 1 year | 125 |
11.8%
|
| 5 | 1 year but less than 2 years | 212 |
20.1%
|
| 6 | More than 2 years | 75 |
7.1%
|
| 7 | Not applicable | 335 |
31.7%
|
| Sysmiss | 10992 |