| Value | Category | Cases | |
|---|---|---|---|
| 0 | 62 |
27.8%
|
|
| 1 | 102 |
45.7%
|
|
| 2 | 48 |
21.5%
|
|
| 3 | 10 |
4.5%
|
|
| 4 | 1 |
0.4%
|
|
| Sysmiss | 580 |