| Value | Category | Cases | |
|---|---|---|---|
| 0 | 30 |
3.6%
|
|
| 1 | 317 |
38.4%
|
|
| 2 | 307 |
37.2%
|
|
| 3 | 104 |
12.6%
|
|
| 4 | 41 |
5%
|
|
| 5 | 19 |
2.3%
|
|
| 6 | 2 |
0.2%
|
|
| 7 | 4 |
0.5%
|
|
| 8 | 1 |
0.1%
|
|
| 16 | 1 |
0.1%
|
|
| Missing value | 3 |