| Value | Category | Cases | |
|---|---|---|---|
| 1 | -98 | 25 |
7.9%
|
| 2 | 12 | 3 |
0.9%
|
| 3 | 13 | 1 |
0.3%
|
| 4 | 14 | 3 |
0.9%
|
| 5 | 15 | 10 |
3.1%
|
| 6 | 16 | 13 |
4.1%
|
| 7 | 17 | 11 |
3.5%
|
| 8 | 18 | 108 |
34%
|
| 9 | 19 | 8 |
2.5%
|
| 10 | 20 | 46 |
14.5%
|
| 11 | 21 | 8 |
2.5%
|
| 12 | 22 | 20 |
6.3%
|
| 13 | 23 | 1 |
0.3%
|
| 14 | 24 | 1 |
0.3%
|
| 15 | 25 | 10 |
3.1%
|
| Missing value | 50 |
15.7%
|