| Value | Category | Cases | |
|---|---|---|---|
| 0 | 17 |
1.1%
|
|
| 1 | 4 |
0.3%
|
|
| 2 | 36 |
2.3%
|
|
| 3 | 20 |
1.3%
|
|
| 4 | 9 |
0.6%
|
|
| 5 | 2 |
0.1%
|
|
| 6 | 4 |
0.3%
|
|
| 11 | 2 |
0.1%
|
|
| 20 | 1 |
0.1%
|
|
| Missing value | 1476 |
94%
|