| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 18 |
4.6%
|
| 2 | 1 month to < 3 months | 48 |
12.4%
|
| 3 | 3 months to < 6 months | 44 |
11.3%
|
| 4 | 6 months to < 12 months | 40 |
10.3%
|
| 5 | 1 year to < 2 years | 92 |
23.7%
|
| 6 | 2 years or more | 146 |
37.6%
|
| Sysmiss | 2969 |