| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO, NO DIFFICULTY | 26722 |
98.6%
|
| 2 | YES, SOME | 175 |
0.6%
|
| 3 | YES, A LOT | 41 |
0.2%
|
| 4 | CANNOT DO | 170 |
0.6%
|
| Sysmiss | 1244 |