| Value | Category | Cases | |
|---|---|---|---|
| 0 | 12 |
0.8%
|
|
| 1 | 603 |
38.4%
|
|
| 2 | 81 |
5.2%
|
|
| 3 | 20 |
1.3%
|
|
| 4 | 7 |
0.4%
|
|
| Missing value | 848 |
54%
|