| Characteristic | Average duration in minutes |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Source
Release date
February 2019
Region
United States
Survey time period
2008 to 2017
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