Estimates are adjusted for seasonal variation, but not for price changes. Total sales estimates are also adjusted for trading-day differences and moving holidays.
Last reported quarter 2018 Q3 it was $130.95 billion, up by 15% year-over-year from $114.19 billion. From $389.94 billion in 2016 it increased by 15% to $449.29 billion in 2017.
Source: The Census Bureau of the Department of Commerce.