G17: Seasonal factors for auto and light truck sales have been released

Published on August 2, 2013

Seasonal factors for auto and truck production have been released.

The Federal Reserve Board estimates seasonal factors for new light vehicle sales and provides these factors to The Bureau of Economic Analysis (BEA) for use in the National Income and Product Accounts. These factors are estimated once per year using X12-ARIMA and were last estimated in summer 2013, using vehicle sales data through April 2013. The seasonal factors for months that had not yet occurred were based on projections from the X12-ARIMA program. The factors will be revised again in summer 2014.