| Value | Category | Cases | |
|---|---|---|---|
| 0 | 315 |
33.2%
|
|
| 1 | 506 |
53.3%
|
|
| 2 | 98 |
10.3%
|
|
| 3 | 23 |
2.4%
|
|
| 4 | 7 |
0.7%
|
|
| Sysmiss | 51 |