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 2019 Q1 it was $137.75 billion, up by 12% year-over-year from $122.53 billion. From $449.29 billion in 2017 it increased by 14% to $512.58 billion in 2018.
Source: The Census Bureau of the Department of Commerce.