| Value | Category | Cases | |
|---|---|---|---|
| 0 | 40 |
1%
|
|
| 1 | 309 |
7.9%
|
|
| 2 | 58 |
1.5%
|
|
| 3 | 16 |
0.4%
|
|
| 4 | 3 |
0.1%
|
|
| Missing value | 3505 |
89.2%
|