| Value | Category | Cases | |
|---|---|---|---|
| 1 | -1 | 8 |
0.4%
|
| 2 | 0 | 66 |
3.4%
|
| 3 | 1 | 65 |
3.4%
|
| 4 | 2 | 83 |
4.3%
|
| 5 | 3 | 64 |
3.3%
|
| 6 | 4 | 61 |
3.2%
|
| 7 | 5 | 92 |
4.8%
|
| 8 | 6 | 201 |
10.4%
|
| 9 | 7 | 218 |
11.3%
|
| 10 | 8 | 63 |
3.3%
|
| 11 | 9 | 53 |
2.7%
|
| 12 | 10 | 57 |
3%
|
| 13 | 11 | 64 |
3.3%
|
| Missing value | 837 |
43.3%
|