| Characteristic | Zero | 1 piece | 2 pieces | 3 pieces | 4 pieces |
|---|---|---|---|---|---|
| - | - | - | - | - | - |
| - | - | - | - | - | - |
| - | - | - | - | - | - |
| - | - | - | - | - | - |
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Sources
Release date
February 2018
Region
United States
Survey time period
January 8 to 17, 2018
Number of respondents
5,046 respondents
Age group
18 years and older
Special properties
respondents from the continental U.S., Alaska and Hawaii.
Method of interview
Online interview
Supplementary notes
Source does not provide information on why figures do not add up to 100 percent in for some categories.
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