| Value | Category | Cases | |
|---|---|---|---|
| 0 | 13 |
5.8%
|
|
| 1 | 23 |
10.3%
|
|
| 2 | 38 |
17%
|
|
| 3 | 49 |
21.9%
|
|
| 4 | 30 |
13.4%
|
|
| 5 | 13 |
5.8%
|
|
| 6 | 4 |
1.8%
|
|
| 7 | 52 |
23.2%
|
|
| Missing value | 2 |
0.9%
|