| Value | Category | Cases | |
|---|---|---|---|
| 0 | 175 |
3.9%
|
|
| 1 | 239 |
5.4%
|
|
| 2 | 71 |
1.6%
|
|
| 3 | 21 |
0.5%
|
|
| 4 | 3 |
0.1%
|
|
| 7 | 1 |
0%
|
|
| Missing value | 3930 |
88.5%
|