| Value | Category | Cases | |
|---|---|---|---|
| 0 | 11 |
1.5%
|
|
| 1 | 202 |
27%
|
|
| 2 | 40 |
5.4%
|
|
| 3 | 1 |
0.1%
|
|
| 4 | 2 |
0.3%
|
|
| Missing value | 491 |
65.7%
|