| Value | Category | Cases | |
|---|---|---|---|
| 0 | 13 |
16%
|
|
| 1 | 25 |
30.9%
|
|
| 2 | 3 |
3.7%
|
|
| 3 | 1 |
1.2%
|
|
| 4 | 1 |
1.2%
|
|
| 6 | 1 |
1.2%
|
|
| 7 | 2 |
2.5%
|
|
| Missing value | 35 |
43.2%
|