| Value | Category | Cases | |
|---|---|---|---|
| 0 | 52 |
75.4%
|
|
| 1 | 9 |
13%
|
|
| 2 | 4 |
5.8%
|
|
| 3 | 1 |
1.4%
|
|
| 5 | 1 |
1.4%
|
|
| 6 | 1 |
1.4%
|
|
| 9 | 1 |
1.4%
|
|
| Sysmiss | 29 |