| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 42 |
2.9%
|
| 2 | 2 | 398 |
27.2%
|
| 3 | 3 | 378 |
25.9%
|
| 4 | 4 | 21 |
1.4%
|
| 5 | 5 | 70 |
4.8%
|
| 6 | 6 | 9 |
0.6%
|
| 7 | 96 | 5 |
0.3%
|
| Missing value | 539 |
36.9%
|