| Value | Category | Cases | |
|---|---|---|---|
| -999999999 | missing | 0 |
0%
|
| 1 | No, no difficulty | 46198 |
97%
|
| 2 | Yes, some difficulty | 829 |
1.7%
|
| 3 | Yes, a lot of difficulty | 160 |
0.3%
|
| 4 | Cannot do it at all | 436 |
0.9%
|