U.S. real gross domestic product increased from $10 trillion in 2000 to $15 trillion in 2010. During that same decade the share of manufactured goods (e.g., cars, appliances) of U.S. real gross domestic product fell from 16 percent to 12 percent. What was the dollar value of manufactured output

a. In 2000 ? ______ trillion

b. In 2010? ______ trillion

c. By how much did the dollar value of manufacturing output change?

It ________ (increased/decreased) by ____%