U.S. average actual GDP from 1900 to2000 Real GDP per person First oil price shock (1996 dollars) World Great World Korean Vietnam /Second oil price shock 35000 War/ Depression War l War War 30000 20.000 10.000 5.000 3.000 19001910192019301940195019601970198019902000 Year 友学经济学院U.S. average actual GDP from 1900 to 2000