| Value | Category | Cases | |
|---|---|---|---|
| 0 | 107 |
22.4%
|
|
| 1 | 324 |
67.8%
|
|
| 2 | 39 |
8.2%
|
|
| 3 | 4 |
0.8%
|
|
| 4 | 4 |
0.8%
|
|
| Missing value | 81 |