| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 9 |
1.9%
|
| 2 | 1 | 240 |
49.9%
|
| 3 | 2 | 67 |
13.9%
|
| 4 | 3 | 1 |
0.2%
|
| Missing value | 164 |
34.1%
|