| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
0.1%
|
|
| 1 | 8 |
0.5%
|
|
| 2 | 7 |
0.4%
|
|
| 3 | 38 |
2.4%
|
|
| 4 | 63 |
3.9%
|
|
| 5 | 121 |
7.5%
|
|
| 6 | 196 |
12.1%
|
|
| 7 | 510 |
31.6%
|
|
| Missing value | 671 |
41.5%
|