| Characteristic | 2001* | 2018 |
|---|---|---|
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
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Source
Release date
May 2018
Region
United States
Survey time period
2001 and 2018
Supplementary notes
* Added from the 2017 index report.
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