| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 37 |
10.7%
|
| 2 | 1 | 31 |
9%
|
| 3 | 2 | 21 |
6.1%
|
| 4 | 3 | 8 |
2.3%
|
| 5 | 4 | 1 |
0.3%
|
| 6 | 5 | 2 |
0.6%
|
| Missing value | 245 |
71%
|