U.S.Gross Domestic Product in billions of chained 1996 dollars 10,000 9,000 8,000 7,000 6.000 6'or0· 5,000 leng-run upward trend. 4,000 C.o 3,000 1970 1975 1980 1985 1990 1995 2000 CHAPTER 1 The Science of Macroeconomics slide 5 CHAPTER 1 The Science of Macroeconomics slide 5 U.S. Gross Domestic Product in billions of chained 1996 dollars 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 1970 1975 1980 1985 1990 1995 2000 1