| Value | Category | Cases | |
|---|---|---|---|
| 0 | 394 |
57%
|
|
| 1 | 166 |
24%
|
|
| 2 | 87 |
12.6%
|
|
| 3 | 31 |
4.5%
|
|
| 4 | 10 |
1.4%
|
|
| 6 | 2 |
0.3%
|
|
| 8 | 1 |
0.1%
|
|
| Missing value | 28 |