| Value | Category | Cases | |
|---|---|---|---|
| 0 | NR | 420 |
1.7%
|
| 1 | yes;free | 2629 |
10.8%
|
| 2 | partly free | 192 |
0.8%
|
| 3 | on payment | 2213 |
9.1%
|
| 4 | not taken/required | 18798 |
77.5%
|