| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 |
1.5%
|
|
| 1 | 10 |
3.7%
|
|
| 2 | 16 |
5.9%
|
|
| 3 | 17 |
6.3%
|
|
| 4 | 7 |
2.6%
|
|
| 5 | 18 |
6.7%
|
|
| 6 | 7 |
2.6%
|
|
| 7 | 4 |
1.5%
|
|
| 8 | 4 |
1.5%
|
|
| 9 | 1 |
0.4%
|
|
| 10 | 7 |
2.6%
|
|
| 12 | 3 |
1.1%
|
|
| 13 | 1 |
0.4%
|
|
| 15 | 1 |
0.4%
|
|
| 20 | 1 |
0.4%
|
|
| 30 | 1 |
0.4%
|
|
| Missing value | 167 |
62.1%
|