Year	Millions of 2000 Dollars
1960-01-01	162.02400000000000
1961-01-01	186.02900000000002
1962-01-01	216.87900000000002
1963-01-01	232.96599999999998
1964-01-01	247.44600000000000
1965-01-01	258.73800000000000
1966-01-01	242.70400000000000
1967-01-01	250.00400000000002
1968-01-01	266.72200000000000
1969-01-01	265.13000000000000
1970-01-01	274.52700000000000
1971-01-01	320.77600000000000
1972-01-01	404.55600000000000
1973-01-01	534.57500000000000
1974-01-01	842.51100000000010
1975-01-01	1258.33000000000000
1976-01-01	2021.79000000000000
1977-01-01	2000.57000000000000
1978-01-01	1760.32000000000000
1979-01-01	1746.27000000000000
1980-01-01	1720.73000000000000
1981-01-01	1438.00000000000000
1982-01-01	1343.11000000000000
1983-01-01	1229.44000000000000
1984-01-01	1191.09000000000000
1985-01-01	1631.49000000000000
1986-01-01	1700.04000000000000
1987-01-01	1712.36000000000000
1988-01-01	1448.26000000000000
1989-01-01	1533.97000000000000
1990-01-01	1691.33000000000000
1991-01-01	1759.62000000000000
1992-01-01	1354.60000000000000
1993-01-01	1210.23000000000000
1994-01-01	892.77699999999990
1995-01-01	1046.02000000000000
1996-01-01	1110.36000000000000
1997-01-01	1062.50000000000000
1998-01-01	1093.17000000000000
1999-01-01	889.18500000000000
2000-01-01	942.22399999999990
2001-01-01	944.39899999999990
2002-01-01	1160.33000000000000
2003-01-01	1355.03000000000000
2004-01-01	1575.96000000000000
2005-01-01	1683.31000000000000
2006-01-01	2132.32000000000000
2007-01-01	2448.80000000000000
2008-01-01	2523.72000000000000
2009-01-01	2597.15000000000000
2010-01-01	2829.81000000000000
2011-01-01	3432.36000000000000
2012-01-01	3751.49000000000000
2013-01-01	4284.19000000000000
2014-01-01	3644.63000000000000
2015-01-01	3256.09000000000000
2016-01-01	2964.88000000000000