| Value | Category | Cases | |
|---|---|---|---|
| 0 | 23 |
3.3%
|
|
| 1 | 294 |
41.7%
|
|
| 2 | 264 |
37.4%
|
|
| 3 | 85 |
12.1%
|
|
| 4 | 28 |
4%
|
|
| 5 | 6 |
0.9%
|
|
| 6 | 1 |
0.1%
|
|
| 7 | 4 |
0.6%
|
|
| Missing value | 14 |