| Value | Category | Cases | |
|---|---|---|---|
| 0 | 501 |
92.6%
|
|
| 1 | 33 |
6.1%
|
|
| 2 | 4 |
0.7%
|
|
| 3 | 1 |
0.2%
|
|
| 4 | 1 |
0.2%
|
|
| Missing value | 1 |
0.2%
|