| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0-5 | 275 |
7.3%
|
| 2 | 6-11 | 327 |
8.7%
|
| 3 | 12-23 | 708 |
18.8%
|
| 4 | 24-35 | 761 |
20.3%
|
| 5 | 36-47 | 766 |
20.4%
|
| 6 | 48-59 | 776 |
20.7%
|
| Sysmiss | 144 |
3.8%
|