| Characteristic | Monthly passengers in millions |
|---|---|
| - | - |
| - | - |
| - | - |
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Sources
Release date
February 2017
Region
United States
Survey time period
2015 and 2016
Supplementary notes
Spring is defined as April to June and fall as September to November by the source.
The source assumes 1.66 passengers per trip for their calculations.
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