| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3100 |
13.4%
|
|
| 1 | 5931 |
25.6%
|
|
| 2 | 8501 |
36.7%
|
|
| 3 | 3449 |
14.9%
|
|
| 4 | 1313 |
5.7%
|
|
| 5 | 524 |
2.3%
|
|
| 6 | 72 |
0.3%
|
|
| 7 | 196 |
0.8%
|
|
| Missing value | 52 |
0.2%
|