| Value | Category | Cases | |
|---|---|---|---|
| 0 | 139 |
28.4%
|
|
| 1 | 234 |
47.9%
|
|
| 2 | 84 |
17.2%
|
|
| 3 | 24 |
4.9%
|
|
| 4 | 7 |
1.4%
|
|
| 6 | 1 |
0.2%
|
|
| Missing value | 180 |