| Value | Category | Cases | |
|---|---|---|---|
| 0 | 16 |
2.4%
|
|
| 1 | 135 |
20.5%
|
|
| 2 | 309 |
47%
|
|
| 3 | 92 |
14%
|
|
| 4 | 58 |
8.8%
|
|
| 5 | 23 |
3.5%
|
|
| 6 | 11 |
1.7%
|
|
| 7 | 7 |
1.1%
|
|
| 8 | 3 |
0.5%
|
|
| 9 | 2 |
0.3%
|
|
| 10 | 1 |
0.2%
|
|
| 12 | 1 |
0.2%
|
|
| Missing value | 11 |