| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | None | 1378133 | 13781330 |
97.7%
|
| 2 | Some difficulty | 25606 | 256060 |
1.8%
|
| 3 | Major difficulty | 5270 | 52700 |
0.4%
|
| 4 | Fully disabled | 1851 | 18510 |
0.1%
|
| 9 | Not Stated | 0 | 0 |
0%
|
| Sysmiss | 144361 | 1443610 |