| Value | Category | Cases | |
|---|---|---|---|
| 0 | 19 |
7.6%
|
|
| 1 | 159 |
63.6%
|
|
| 2 | 65 |
26%
|
|
| 3 | 6 |
2.4%
|
|
| 4 | 1 |
0.4%
|
|
| Missing value | 18 |