Estimates are unajusted for seasonal variation, or for price changes. Total sales estimates are also unajusted for trading-day differences and moving holidays.
Last reported quarter 2018 Q3 it was $121.46 billion, up by 14% year-over-year from $106.24 billion. From $390.99 billion in 2016 it increased by 15% to $450.66 billion in 2017.
Source: The Census Bureau of the Department of Commerce.