| Value | Category | Cases | |
|---|---|---|---|
| 0 | 371 |
72.3%
|
|
| 1 | 114 |
22.2%
|
|
| 2 | 19 |
3.7%
|
|
| 3 | 7 |
1.4%
|
|
| 4 | 1 |
0.2%
|
|
| 7 | 1 |
0.2%
|
|
| Sysmiss | 538 |