| Value | Category | Cases | |
|---|---|---|---|
| 0 | 647 |
20.7%
|
|
| 1 | 419 |
13.4%
|
|
| 2 | 96 |
3.1%
|
|
| 3 | 18 |
0.6%
|
|
| 4 | 3 |
0.1%
|
|
| 6 | 2 |
0.1%
|
|
| Missing value | 1945 |
62.1%
|