| Value | Category | Cases | |
|---|---|---|---|
| 0 | 230 |
17.6%
|
|
| 1 | 399 |
30.5%
|
|
| 2 | 227 |
17.4%
|
|
| 3 | 45 |
3.4%
|
|
| 4 | 28 |
2.1%
|
|
| 5 | 9 |
0.7%
|
|
| 6 | 3 |
0.2%
|
|
| Missing value | 366 |
28%
|