| Value | Category | Cases | |
|---|---|---|---|
| 0 | NR | 1926 |
7.9%
|
| 1 | yes;free | 7566 |
31.2%
|
| 2 | partly free | 3639 |
15%
|
| 3 | on payment | 9930 |
40.9%
|
| 4 | not taken/required | 1191 |
4.9%
|