A. In general, 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 | 2000 | 2010 | 2016 | 2018 |
---|---|---|---|---|---|
537 | 422 | 423 | 426 | 382 | 346 |
484 | 421 | 412 | 549 | 328 | 262 |
413 | 400 | 288 | 353 | 159 | 141 |
54 | 63 | 44 | 51 | 22 | 23 |
9 | 6 | 14 | 10 | 6 | 5 |
32 | 29 | 44 | 35 | 12 | 5 |
28 | 45 | 51 | 6 | 2 | 3 |
49 | 1606 | 1541 | 614 | 1956 | 1563 |
Valid cases | 6276 |
Missing cases | 56190 |