| Value | Category | Cases | |
|---|---|---|---|
| 1 | < 6 months | 154 |
8.2%
|
| 2 | 6-11 months | 183 |
9.8%
|
| 3 | 12-23 months | 374 |
19.9%
|
| 4 | 24-35 months | 348 |
18.6%
|
| 5 | 36-47 months | 393 |
21%
|
| 6 | 48-59 months | 423 |
22.6%
|
| Sysmiss | 15 |