| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 34 |
10.7%
|
| 2 | 1 | 60 |
18.9%
|
| 3 | 2 | 94 |
29.6%
|
| 4 | 3 | 74 |
23.3%
|
| 5 | 4 | 27 |
8.5%
|
| 6 | 5 | 13 |
4.1%
|
| 7 | 6 | 5 |
1.6%
|
| 8 | 7 | 1 |
0.3%
|
| Missing value | 10 |
3.1%
|