| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always available | 1710 |
84.9%
|
| 2 | Mostly available | 265 |
13.2%
|
| 3 | Sometimes available | 28 |
1.4%
|
| 4 | Rarely available | 11 |
0.5%
|
| Sysmiss | 382 |