| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 137 |
14.2%
|
| 2 | 1 | 197 |
20.5%
|
| 3 | 2 | 192 |
20%
|
| 4 | 3 | 98 |
10.2%
|
| 5 | 4 | 34 |
3.5%
|
| 6 | 5 | 20 |
2.1%
|
| 7 | 6 | 7 |
0.7%
|
| 8 | 7 | 18 |
1.9%
|
| Missing value | 259 |
26.9%
|