| Value | Category | Cases | |
|---|---|---|---|
| 0 | 557 |
89.7%
|
|
| 1 | 22 |
3.5%
|
|
| 2 | 13 |
2.1%
|
|
| 3 | 5 |
0.8%
|
|
| 4 | 3 |
0.5%
|
|
| 5 | 5 |
0.8%
|
|
| 7 | 6 |
1%
|
|
| Missing value | 10 |
1.6%
|