| Value | Category | Cases | |
|---|---|---|---|
| 0 | No difficulty | 57996 |
98.4%
|
| 1 | Yes, some difficulty | 420 |
0.7%
|
| 2 | Yes, major difficulty | 369 |
0.6%
|
| 3 | Not at all | 155 |
0.3%
|