| Value | Category | Cases | |
|---|---|---|---|
| 1 | 18 |
2.7%
|
|
| 2 | 68 |
10.3%
|
|
| 3 | 74 |
11.2%
|
|
| 4 | 35 |
5.3%
|
|
| 5 | 10 |
1.5%
|
|
| 6 | 2 |
0.3%
|
|
| Missing value | 455 |
68.7%
|