G17: Seasonal Factors for domestic auto and truck production have been revised

Seasonal factors for auto and truck production were from January 2015 through June 2021 on March 17, 2020. The revised factors for September 2019 through February 2020 were used in the G.17 release issued on March 17, 2020, and the revised factors for earlier months will be incorporated into the production estimates at the time of the annual revision in the summer of 2020. The revised seasonal factors are based on production data through January 2020. The seasonal factors are scheduled to be revised again in March 2021.