American manufacturing has significantly transformed since its peak in the 1940s, facing job losses due to foreign trade and automation, with its economic output rising from $1.6 trillion in 1947 to $5.6 trillion in 2016. The geographical center of manufacturing has shifted from the northeast and Great Lakes to southern and central states, leading to a decrease in manufacturing's share of total employment from 23% in 1940 to 10% in 2016. By 2016, manufacturing was the largest employer in only Indiana and Wisconsin, highlighting a decline in its role across most states.