| Value | Category | Cases | |
|---|---|---|---|
| 0 | 991 |
12.3%
|
|
| 1 | 3443 |
42.8%
|
|
| 2 | 581 |
7.2%
|
|
| 3 | 237 |
2.9%
|
|
| 4 | 62 |
0.8%
|
|
| 5 | 24 |
0.3%
|
|
| 6 | 4 |
0%
|
|
| 7 | 1 |
0%
|
|
| 8 | 1 |
0%
|
|
| Missing value | 2692 |
33.5%
|