| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0-11 | 4547 |
18.4%
|
| 2 | 12-23 | 4514 |
18.3%
|
| 3 | 24-35 | 4596 |
18.6%
|
| 4 | 36-47 | 4790 |
19.4%
|
| 5 | 48-59 | 4652 |
18.8%
|
| Sysmiss | 1587 |
6.4%
|