| Characteristic | Share of respondents |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Source
Release date
March 2016
Region
United States
Survey time period
2010, 2012, 2013, 2015, 2016 (as of Q1 2016)
Age group
18 years and older
Method of interview
Telephone interview
Supplementary notes
Figures for the period 2012 to 2015 come from earlier releases.
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