| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 503 |
52.3%
|
| 2 | 1 | 114 |
11.9%
|
| 3 | 2 | 56 |
5.8%
|
| 4 | 3 | 23 |
2.4%
|
| 5 | 4 | 4 |
0.4%
|
| 6 | 5 | 1 |
0.1%
|
| 7 | 7 | 2 |
0.2%
|
| Missing value | 259 |
26.9%
|