AP FACT CHECK: Trump, Clinton and their debate claims

Factory production, minus the cost of raw materials and certain other expenses, reached 1.91 trillion last year, according to the Commerce Department, which uses 2009 dollars to adjust for inflation. That's a notch below the record set on the eve of the Great Recession in 2007. Factories have used robotics and computers to increase output even with fewer workers. The U.S. still produces plenty of autos, planes, steel and other metals, and large industrial machinery.