| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 22 |
6.9%
|
| 2 | 1 | 57 |
17.9%
|
| 3 | 2 | 97 |
30.5%
|
| 4 | 3 | 70 |
22%
|
| 5 | 4 | 43 |
13.5%
|
| 6 | 5 | 15 |
4.7%
|
| 7 | 6 | 1 |
0.3%
|
| 8 | 7 | 2 |
0.6%
|
| 9 | 8 | 1 |
0.3%
|
| Missing value | 10 |
3.1%
|