| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0-11 | 243 |
10.6%
|
| 2 | 12-23 | 509 |
22.2%
|
| 3 | 24-35 | 514 |
22.4%
|
| 4 | 36-47 | 556 |
24.2%
|
| 5 | 48-59 | 475 |
20.7%
|
| Sysmiss | 35 |