| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 88 |
5.8%
|
| 2 | 1 to 2 months | 120 |
8%
|
| 3 | 3 to 6 months | 155 |
10.3%
|
| 4 | 7 to 11 months | 155 |
10.3%
|
| 5 | 1-2 years | 433 |
28.8%
|
| 6 | 3 or more years | 555 |
36.9%
|
| Sysmiss | 42754 |