| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 139 |
7.7%
|
| 2 | 2 | 304 |
16.9%
|
| 3 | 3 | 24 |
1.3%
|
| 4 | 4 | 19 |
1.1%
|
| 5 | 5 | 4 |
0.2%
|
| 6 | 8 | 1 |
0.1%
|
| Missing value | 1304 |
72.6%
|