| Characteristic | Favor | Oppose |
|---|---|---|
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
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Release date
February 2017
Region
United States
Survey time period
2013, 2014 and 2017*
Number of respondents
3,006*
Age group
18 years and older
Method of interview
Telephone interview
Supplementary notes
* Date of surveys: March 13-17, 2013; September 4-8, 2013; January 23 to March 16, 2014; November 6-9, 2014; February 7-12, 2017.
Number of respondents: n=1,501 (March 2013); n=1,506 (September 2013); n=10,013 (January-March 2014); n=1,353 (November 2014); n=3,006 (February 2017).
"Do not know" responses not displayed.
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