| Value | Category | Cases | |
|---|---|---|---|
| 0 | 20 |
2.3%
|
|
| 1 | 183 |
20.8%
|
|
| 2 | 404 |
45.9%
|
|
| 3 | 130 |
14.8%
|
|
| 4 | 77 |
8.8%
|
|
| 5 | 34 |
3.9%
|
|
| 6 | 14 |
1.6%
|
|
| 7 | 8 |
0.9%
|
|
| 8 | 6 |
0.7%
|
|
| 9 | 2 |
0.2%
|
|
| 10 | 1 |
0.1%
|
|
| 12 | 1 |
0.1%
|
|
| Missing value | 13 |