| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 17 |
0.9%
|
| 2 | 1 | 37 |
2.1%
|
| 3 | 2 | 43 |
2.4%
|
| 4 | 3 | 105 |
5.8%
|
| 5 | 4 | 1191 |
66.4%
|
| 6 | 5 | 1 |
0.1%
|
| 7 | 6 | 10 |
0.6%
|
| 8 | 12 | 1 |
0.1%
|
| Missing value | 390 |
21.7%
|