How difficult was case to get?
Code | Label |
---|---|
1 | Very easy |
2 | Somewhat easy |
3 | Somewhat difficult |
4 | Very difficult |
9 | No answer |
0 | Not applicable |
1998 | 2000 |
---|---|
687 | 733 |
796 | 827 |
815 | 783 |
494 | 413 |
40 | 61 |
0 | 0 |
Valid cases | 5548 |
Missing cases | 56918 |