| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0-11 | 3489 |
19.1%
|
| 2 | 12-23 | 3031 |
16.6%
|
| 3 | 24-35 | 3555 |
19.4%
|
| 4 | 36-47 | 3839 |
21%
|
| 5 | 48-59 | 4044 |
22.1%
|
| 8 | No information | 20 |
0.1%
|
| Sysmiss | 334 |
1.8%
|