| Value | Category | Cases | |
|---|---|---|---|
| 0 | No difficulty | 58036 |
98.5%
|
| 1 | Yes, some difficulty | 477 |
0.8%
|
| 2 | Yes, major difficulty | 307 |
0.5%
|
| 3 | Not at all | 120 |
0.2%
|