| Value | Category | Cases | |
|---|---|---|---|
| 1 | With great difficulty | 2033 |
39.3%
|
| 2 | With difficulty | 1595 |
30.9%
|
| 3 | With some difficulty | 1320 |
25.5%
|
| 4 | Fairly easily | 150 |
2.9%
|
| 5 | Easily | 66 |
1.3%
|
| 6 | Very easily | 3 |
0.1%
|
| Sysmiss | 17 |