| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0-11 | 2829 |
18.6%
|
| 2 | 12-23 | 2953 |
19.4%
|
| 3 | 24-35 | 2928 |
19.2%
|
| 4 | 36-47 | 3160 |
20.8%
|
| 5 | 48-59 | 3003 |
19.7%
|
| Sysmiss | 351 |
2.3%
|