Year	Millions of 2000 Dollars
1960-01-01	203.62300000000000
1961-01-01	227.40200000000002
1962-01-01	231.18900000000002
1963-01-01	240.50099999999998
1964-01-01	240.57800000000000
1965-01-01	236.05000000000000
1966-01-01	215.03099999999998
1967-01-01	231.13200000000000
1968-01-01	247.98600000000000
1969-01-01	260.99900000000000
1970-01-01	273.87400000000000
1971-01-01	309.32599999999996
1972-01-01	393.63900000000000
1973-01-01	463.45599999999996
1974-01-01	493.16700000000000
1975-01-01	580.45300000000000
1976-01-01	764.76800000000000
1977-01-01	859.10100000000010
1978-01-01	927.04100000000000
1979-01-01	899.94900000000000
1980-01-01	984.69500000000000
1981-01-01	1014.46000000000000
1982-01-01	1009.41000000000000
1983-01-01	1016.08000000000000
1984-01-01	1111.16000000000000
1985-01-01	1203.54000000000000
1986-01-01	1300.04000000000000
1987-01-01	1403.30000000000000
1988-01-01	1205.40000000000000
1989-01-01	1585.06000000000000
1990-01-01	1531.48000000000000
1991-01-01	1008.60000000000000
1992-01-01	962.03000000000000
1993-01-01	1034.42000000000000
1994-01-01	1309.83000000000000
1995-01-01	1300.87000000000000
1996-01-01	1363.27000000000000
1997-01-01	1404.03000000000000
1998-01-01	1583.25000000000000
1999-01-01	1751.82000000000000
2000-01-01	1625.89000000000000
2001-01-01	1579.97000000000000
2002-01-01	1330.31000000000000
2003-01-01	1620.77000000000000
2004-01-01	1870.62000000000000
2005-01-01	1845.25000000000000
2006-01-01	2166.88000000000000
2007-01-01	2364.34000000000000
2008-01-01	2403.79000000000000
2009-01-01	2518.91000000000000
2010-01-01	3297.68000000000000
2011-01-01	3330.46000000000000
2012-01-01	3378.13000000000000
2013-01-01	3471.55000000000000
2014-01-01	3484.58000000000000
2015-01-01	3530.17000000000000
2016-01-01	3465.10000000000000