| Value | Category | Cases | |
|---|---|---|---|
| 0 | 32 |
6.3%
|
|
| 1 | 126 |
24.6%
|
|
| 2 | 33 |
6.4%
|
|
| 3 | 11 |
2.1%
|
|
| 9 | 1 |
0.2%
|
|
| Missing value | 309 |
60.4%
|