Year	Millions of 2000 Dollars
1960-01-01	338.25199999999995
1961-01-01	374.05699999999996
1962-01-01	348.24400000000000
1963-01-01	448.70900000000000
1964-01-01	453.50400000000000
1965-01-01	406.55000000000000
1966-01-01	433.99000000000000
1967-01-01	378.05600000000000
1968-01-01	376.94300000000004
1969-01-01	451.79300000000000
1970-01-01	483.35699999999997
1971-01-01	577.62800000000000
1972-01-01	647.38000000000000
1973-01-01	761.56400000000000
1974-01-01	1215.66000000000000
1975-01-01	1203.89000000000000
1976-01-01	1215.05000000000000
1977-01-01	1354.86000000000000
1978-01-01	1621.81000000000000
1979-01-01	1212.40000000000000
1980-01-01	1276.75000000000000
1981-01-01	923.98100000000010
1982-01-01	1043.78000000000000
1983-01-01	944.80900000000000
1984-01-01	845.99200000000000
1985-01-01	1165.24000000000000
1986-01-01	1616.45000000000000
1987-01-01	2160.73000000000000
1988-01-01	2340.02000000000000
1989-01-01	2380.94000000000000
1990-01-01	2843.79000000000000
1991-01-01	3251.71000000000000
1992-01-01	3184.68000000000000
1993-01-01	3303.35000000000000
1994-01-01	3771.64000000000000
1995-01-01	4410.78000000000000
1996-01-01	4512.49000000000000
1997-01-01	4168.68000000000000
1998-01-01	4098.86000000000000
1999-01-01	4472.30000000000000
2000-01-01	4316.29000000000000
2001-01-01	4325.83000000000000
2002-01-01	4957.12000000000000
2003-01-01	6696.45000000000000
2004-01-01	7114.90000000000000
2005-01-01	6802.87000000000000
2006-01-01	6521.44000000000000
2007-01-01	8801.01000000000000
2008-01-01	8961.20000000000000
2009-01-01	9409.79000000000000
2010-01-01	9879.01000000000000
2011-01-01	10582.50000000000000
2012-01-01	10808.50000000000000
2013-01-01	11431.50000000000000
2014-01-01	11695.90000000000000
2015-01-01	11309.30000000000000
2016-01-01	12045.20000000000000