| Characteristic | Number of establishments |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Region
United States
Survey time period
2007 to 2019
Supplementary notes
* Forecast.
Figures are estimates.
Values up to 2016 were taken from previous editions.
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