| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 54 |
10.5%
|
| 1 | 1 | 252 |
49.1%
|
| 2 | 2 | 143 |
27.9%
|
| 3 | 3 | 47 |
9.2%
|
| 4 | 4 | 14 |
2.7%
|
| 5 | 5 | 3 |
0.6%
|
| Sysmiss | 476 |