| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 971 |
11.4%
|
| 2 | [1,3] | 1794 |
21.1%
|
| 3 | (3,9] | 4083 |
48.1%
|
| 4 | (9,12] | 1125 |
13.2%
|
| 5 | (12,15] | 401 |
4.7%
|
| 6 | +15 | 123 |
1.4%
|
| Sysmiss | 346 |