| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very easy | 1 |
100%
|
| 2 | Somewhat easy | 0 |
0%
|
| 3 | Somewhat difficult | 0 |
0%
|
| 4 | Very difficult | 0 |
0%
|
| 97 | Refused | 0 |
0%
|
| 98 | Don't know | 0 |
0%
|
| 99 | Missing | 0 |
0%
|
| Sysmiss | 1724 |