| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 614 |
63.8%
|
| 2 | 1 | 42 |
4.4%
|
| 3 | 2 | 56 |
5.8%
|
| 4 | 3 | 52 |
5.4%
|
| 5 | 4 | 42 |
4.4%
|
| 6 | 5 | 17 |
1.8%
|
| 7 | 6 | 2 |
0.2%
|
| 8 | 7 | 32 |
3.3%
|
| Missing value | 105 |
10.9%
|