| Characteristic | 2017 | 2018 | 2019 |
|---|---|---|---|
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
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Source
Release date
September 2019
Region
United States
Survey time period
2017 to 2019
Supplementary notes
2017 values were taken from a previous edition.
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