| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2 |
8%
|
|
| 2 | 4 |
16%
|
|
| 3 | 5 |
20%
|
|
| 4 | 3 |
12%
|
|
| 5 | 3 |
12%
|
|
| 6 | 3 |
12%
|
|
| 7 | 1 |
4%
|
|
| 8 | 1 |
4%
|
|
| 10 | 1 |
4%
|
|
| 12 | 1 |
4%
|
|
| 15 | 1 |
4%
|
|
| Missing value | 331 |