| Value | Category | Cases | |
|---|---|---|---|
| 0 | NR | 436 |
1.8%
|
| 1 | yes;free | 5796 |
23.9%
|
| 2 | partly free | 313 |
1.3%
|
| 3 | on payment | 5032 |
20.7%
|
| 4 | not taken/required | 12675 |
52.3%
|