| Value | Category | Cases | |
|---|---|---|---|
| 0 | 156 |
24.3%
|
|
| 1 | 94 |
14.7%
|
|
| 2 | 158 |
24.6%
|
|
| 3 | 127 |
19.8%
|
|
| 4 | 70 |
10.9%
|
|
| 5 | 22 |
3.4%
|
|
| 6 | 5 |
0.8%
|
|
| 7 | 8 |
1.2%
|
|
| Missing value | 1 |
0.2%
|