How have US trucking volumes grown since 2015?

Each month, the American Trucking Associations releases its Truck Tonnage Index, which tracks volumes hauled by US trucking companies.

It also publishes a chart of changes to the Index over time, the most recent of which we present below:

Source: ATA

As can be seen, the index uses the average of tonnage in 2015 as its baseline, with an index value of 100.

At the end of 2020 - a year in which tonnage fell 3.3% - the index stood at 120, meaning a solid 20% growth over the five years since 2015. It also reached a peak in early 2020 before following an odd "W" shaped pattern since the start of the pandemic, though ending the year on a high note.

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