| Value | Category | Cases | |
|---|---|---|---|
| 0 | 252 |
28.1%
|
|
| 1 | 391 |
43.6%
|
|
| 2 | 178 |
19.8%
|
|
| 3 | 61 |
6.8%
|
|
| 4 | 13 |
1.4%
|
|
| 5 | 2 |
0.2%
|
|
| Sysmiss | 319 |