| Value | Category | Cases | |
|---|---|---|---|
| 0 | 49 |
5.8%
|
|
| 1 | 355 |
41.8%
|
|
| 2 | 339 |
39.9%
|
|
| 3 | 76 |
9%
|
|
| 4 | 15 |
1.8%
|
|
| 5 | 8 |
0.9%
|
|
| 6 | 3 |
0.4%
|
|
| 8 | 1 |
0.1%
|
|
| 9 | 3 |
0.4%
|
|
| Missing value | 23 |