| Mode |
Final Sample Size
(% complete by Web) |
Adjusted Response
Rate (AAPOR-RR3) |
| 2006 |
|
|
| Telephone |
1,013 |
30.0 |
| Mail |
389 |
31.9 |
| Web+Mail |
339 (28%) |
22.4 |
| 2008 |
|
|
| Telephone |
1,026 |
31.4 |
| Mail |
327 |
35.5 |
| Web+Mail |
469 (32%) |
25.7 |
| 2010 |
|
|
| Mail |
411 |
40.9 |
| Web+Mail |
761 (28%) |
37.8 |
| Web+Mail Choice |
736 (17%) |
36.4 |