| Characteristic | Index score (100-point scale) |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Source
Release date
July 2020
Region
United States
Survey time period
2010 to 2019
Supplementary notes
Figures prior to 2014 were taken from previous editions.
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