| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0-11 months | 33 |
17.4%
|
| 2 | 12-23 months | 39 |
20.5%
|
| 3 | 24-35 months | 43 |
22.6%
|
| 4 | 36-47 months | 49 |
25.8%
|
| 5 | 48-59 months | 26 |
13.7%
|
| Sysmiss | 2 |