| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 62 |
6.8%
|
| 2 | 1 to 2 months | 102 |
11.2%
|
| 3 | 3 to 6 months | 181 |
19.8%
|
| 4 | 7 to 11 months | 80 |
8.8%
|
| 5 | 1-2 years | 208 |
22.8%
|
| 6 | 3 or more years | 279 |
30.6%
|
| Sysmiss | 46277 |