| Value | Category | Cases | |
|---|---|---|---|
| 1 | 15 |
3.8%
|
|
| 2 | 38 |
9.6%
|
|
| 3 | 20 |
5.1%
|
|
| 4 | 19 |
4.8%
|
|
| 5 | 13 |
3.3%
|
|
| 6 | 1 |
0.3%
|
|
| Missing value | 290 |
73.2%
|