| Value | Category | Cases | |
|---|---|---|---|
| 0 | 128 |
29.2%
|
|
| 1 | 212 |
48.3%
|
|
| 2 | 82 |
18.7%
|
|
| 3 | 13 |
3%
|
|
| 4 | 1 |
0.2%
|
|
| 5 | 2 |
0.5%
|
|
| 20 | 1 |
0.2%
|
|
| Missing value | 108 |