| Value | Category | Cases | |
|---|---|---|---|
| 0 | 28 |
3.6%
|
|
| 1 | 199 |
25.8%
|
|
| 2 | 234 |
30.4%
|
|
| 3 | 144 |
18.7%
|
|
| 4 | 94 |
12.2%
|
|
| 5 | 45 |
5.8%
|
|
| 6 | 20 |
2.6%
|
|
| 7 | 3 |
0.4%
|
|
| 8 | 1 |
0.1%
|
|
| Missing value | 2 |
0.3%
|