| Value | Category | Cases | |
|---|---|---|---|
| 0 | 167 |
3.5%
|
|
| 1 | 281 |
5.8%
|
|
| 2 | 104 |
2.2%
|
|
| 3 | 23 |
0.5%
|
|
| 4 | 4 |
0.1%
|
|
| 6 | 1 |
0%
|
|
| Missing value | 4230 |
87.9%
|