| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than one month | 106 |
8.9%
|
| 2 | Between 1 and 3 months | 104 |
8.7%
|
| 3 | Between 3 and 6 months | 111 |
9.3%
|
| 4 | Between 6 months and 1 year | 179 |
15%
|
| 5 | Between 1 year and two years | 150 |
12.6%
|
| 6 | 2 years | 103 |
8.6%
|
| 7 | More than 2 years | 440 |
36.9%
|
| Sysmiss | 11293 |