| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than one month | 49 |
4.2%
|
| 2 | 1 month but less than 3 months | 157 |
13.4%
|
| 3 | 3 months but less than 6 months | 160 |
13.7%
|
| 4 | 6 months but less than 1 year | 169 |
14.5%
|
| 5 | 1 year but less than 2 years | 220 |
18.8%
|
| 6 | 2 years | 83 |
7.1%
|
| 7 | More than 2 years | 331 |
28.3%
|
| Sysmiss | 13563 |