Index 3.0% Below July 2022 WASHINGTON, Aug. 22, 2023 /PRNewswire/ — American Trucking Associations’ advanced seasonally adjusted (SA) For-Hire Truck Tonnage Index decreased 0.8% in July after falling 0.3% in June. In July, the index equaled 112.9 (2015=100) compared with 113.8 in June….