| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 35 |
3.6%
|
| 2 | 1 | 151 |
15.7%
|
| 3 | 2 | 240 |
24.9%
|
| 4 | 3 | 209 |
21.7%
|
| 5 | 4 | 83 |
8.6%
|
| 6 | 5 | 51 |
5.3%
|
| 7 | 6 | 13 |
1.4%
|
| 8 | 7 | 75 |
7.8%
|
| Missing value | 105 |
10.9%
|