| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 | 279 |
54.4%
|
| 1 | 2 | 156 |
30.4%
|
| 2 | 3 | 56 |
10.9%
|
| 3 | 4 | 19 |
3.7%
|
| 4 | 5 | 3 |
0.6%
|
| Sysmiss | 476 |