From the Executive Summary: "The '2019 Arson Incident Report (AIR)' is an informational product prepared by the United States Bomb Data Center (USBDC), using incident data reported in the Bomb Arson Tracking System (BATS) by its nearly 2,529 interagency partners and 12,515 registered users. This report examines the total number of fire‐related incidents reported in BATS for calendar year 2019 and includes 'Incendiary (Arson), Undetermined, Accidental', and 'Natural' fire‐related incidents. New to the report this year are fire‐related 'Threats' and 'Wildland' fire incidents. From January 1, 2019, through December 31, 2019, BATS captured a total of 23,712 fire‐related incidents. [...] Of these, there were 6,717 incidents reported as 'Incendiary or Arson,' which accounted for 28 percent of all the fires reported. The total amount of damages for all fire types was estimated at more than $952 million, with 999 injuries and 547 fatalities associated with the 23,712 reported fire‐related incidents. 'Available Combustibles' was identified as the most widely utilized incendiary fire subtype, while 'Residential' was identified as the most targeted property type."
Bureau of Alcohol, Tobacco, Firearms and Explosives: https://www.atf.gov/