| Characteristic | Number of employees |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Sources
Release date
December 2018
Region
United States
Survey time period
2000 to 2015
Supplementary notes
Figures for 2005 and 2013 are taken from previous publications.
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