| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 157 |
12.9%
|
| 2 | 1 to 6 months | 164 |
13.5%
|
| 3 | 6 months to 1 year | 66 |
5.4%
|
| 4 | 1 to 2 years | 61 |
5%
|
| 5 | More than 2 years | 69 |
5.7%
|
| 9 | Missing | 702 |
57.6%
|
| 98 | Not applicable | 0 |
0%
|
| Sysmiss | 16850 |