| Value | Category | Cases | |
|---|---|---|---|
| 0 | 14 |
2.6%
|
|
| 1 | 218 |
40.3%
|
|
| 2 | 233 |
43.1%
|
|
| 3 | 39 |
7.2%
|
|
| 4 | 20 |
3.7%
|
|
| 5 | 11 |
2%
|
|
| 6 | 3 |
0.6%
|
|
| 7 | 1 |
0.2%
|
|
| 8 | 1 |
0.2%
|
|
| 9 | 1 |
0.2%
|
|
| Missing value | 18 |