| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO, NO DIFFICULTY | 56195 |
97.6%
|
| 2 | YES, SOME DIFFICULTY | 925 |
1.6%
|
| 3 | YES, A LOT OF DIFFICULTY | 338 |
0.6%
|
| 4 | CANNOT DO IT AT ALL | 98 |
0.2%
|
| Sysmiss | 2264 |