| Value | Category | Cases | |
|---|---|---|---|
| 0 | No difficulty | 56368 |
95.6%
|
| 1 | Yes, some difficulty | 1659 |
2.8%
|
| 2 | Yes, major difficulty | 765 |
1.3%
|
| 3 | Not at all | 148 |
0.3%
|