| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO, NO DIFFICULTY | 55074 |
95.7%
|
| 2 | YES, SOME DIFFICULTY | 1948 |
3.4%
|
| 3 | YES, A LOT OF DIFFICULTY | 503 |
0.9%
|
| 4 | CANNOT DO IT AT ALL | 31 |
0.1%
|
| Sysmiss | 2264 |