| Value | Category | Cases | |
|---|---|---|---|
| 0 | 39 |
50.6%
|
|
| 1 | 25 |
32.5%
|
|
| 2 | 8 |
10.4%
|
|
| 3 | 1 |
1.3%
|
|
| 4 | 1 |
1.3%
|
|
| 6 | 1 |
1.3%
|
|
| 9 | 2 |
2.6%
|
|
| Sysmiss | 41 |