| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 646 |
67.2%
|
| 2 | 1 | 38 |
4%
|
| 3 | 2 | 37 |
3.8%
|
| 4 | 3 | 27 |
2.8%
|
| 5 | 4 | 14 |
1.5%
|
| 6 | 5 | 14 |
1.5%
|
| 7 | 6 | 9 |
0.9%
|
| 8 | 7 | 72 |
7.5%
|
| Missing value | 105 |
10.9%
|