| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always available | 1955 |
63.5%
|
| 2 | Available sometimes in the year | 450 |
14.6%
|
| 3 | Very difficult to get | 354 |
11.5%
|
| 4 | Not available | 264 |
8.6%
|
| 5 | Other | 56 |
1.8%
|