| Value | Category | Cases | |
|---|---|---|---|
| 1 | With great difficulty | 1852 |
33.3%
|
| 2 | With difficulty | 1819 |
32.8%
|
| 3 | With some difficulty | 1612 |
29%
|
| 4 | Fairly easily | 195 |
3.5%
|
| 5 | Easily | 68 |
1.2%
|
| 6 | Very easily | 8 |
0.1%
|