| Characteristic | Individual | Mass send |
|---|---|---|
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
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Sources
Release date
April 2018
Region
United States
Survey time period
April 2018
Number of respondents
*
Supplementary notes
*The source did not provide information on the sample number.
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