From 1992-2014, Canada was our top trading partner, but its share of total US trade steadily declined from 21% to 16%. At the same time Mexico’s grew from 7.5% to 14% and China’s from 3.5% to 15%. From 2015-2018, China was the top trading partner with a 16% share, Canada followed at 15%; Mexico at 14%. Now, Mexico is tops with 15%, Canada is at 14.9% and China at 13.2%.