| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always available | 1097 |
45.1%
|
| 2 | Mostly available | 676 |
27.8%
|
| 3 | Sometimes available | 518 |
21.3%
|
| 4 | Rarely available | 140 |
5.8%
|
| Sysmiss | 2725 |