| Value | Category | Cases | |
|---|---|---|---|
| 0 | 104 |
29.8%
|
|
| 2 | 1 |
0.3%
|
|
| 4 | 1 |
0.3%
|
|
| 6 | 1 |
0.3%
|
|
| 8 | 4 |
1.1%
|
|
| 12 | 4 |
1.1%
|
|
| 14 | 1 |
0.3%
|
|
| Missing value | 233 |
66.8%
|