| Value | Category | Cases | |
|---|---|---|---|
| -999999999 | missing | 0 |
0%
|
| 1 | No, no difficulty | 46054 |
96.7%
|
| 2 | Yes, some difficulty | 1219 |
2.6%
|
| 3 | Yes, a lot of difficulty | 253 |
0.5%
|
| 4 | Cannot do it at all | 97 |
0.2%
|