| Characteristic | Audience |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Source
Release date
August 2013
Region
United States
Survey time period
2011 and 2012
Supplementary notes
Figures for 2011 come from an earlier edition of the study.
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