| Characteristic | Unit shipments in millions |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Release date
January 2018
Region
United States
Survey time period
2012 to 2017
Supplementary notes
* Forecasts for 2018 through 2019
Citation formats









