B. And do you think that pollution of America's rivers, lakes, and streams is…
Code | Label |
---|---|
1 | Extremely dangerous |
2 | Very dangerous |
3 | Somewhat dangerous |
4 | Not very dangerous |
5 | Not dangerous |
8 | Don't know |
9 | No answer |
0 | Not applicable |
1993 | 1994 |
---|---|
374 | 294 |
445 | 408 |
541 | 488 |
113 | 117 |
15 | 18 |
33 | 28 |
36 | 33 |
49 | 1606 |
Valid cases | 2813 |
Missing cases | 59653 |