Year	Millions of 2000 Dollars
1960-01-01	444.04000000000000
1961-01-01	479.23500000000000
1962-01-01	516.36100000000000
1963-01-01	508.12400000000000
1964-01-01	276.86500000000000
1965-01-01	285.23100000000000
1966-01-01	286.72400000000000
1967-01-01	245.35700000000000
1968-01-01	287.28800000000000
1969-01-01	319.67400000000004
1970-01-01	285.07500000000000
1971-01-01	326.97400000000000
1972-01-01	342.15400000000000
1973-01-01	392.75400000000000
1974-01-01	419.28100000000000
1975-01-01	365.99400000000000
1976-01-01	358.80100000000000
1977-01-01	458.18500000000000
1978-01-01	553.22900000000000
1979-01-01	590.79000000000000
1980-01-01	625.31200000000000
1981-01-01	531.42400000000000
1982-01-01	764.55200000000000
1983-01-01	476.14400000000000
1984-01-01	587.73700000000000
1985-01-01	466.89099999999996
1986-01-01	127.33900000000000
1987-01-01	308.88200000000000
1988-01-01	273.72700000000003
1989-01-01	272.32400000000000
1990-01-01	154.69400000000000
1991-01-01	114.77799999999999
1992-01-01	122.77100000000000
1993-01-01	132.73800000000000
1994-01-01	132.55000000000000
1995-01-01	100.47300000000000
1996-01-01	130.83000000000000
1997-01-01	129.05400000000000
1998-01-01	118.44700000000000
1999-01-01	111.09400000000000
2000-01-01	164.46400000000003
2001-01-01	166.93300000000000
2002-01-01	208.31500000000000
2003-01-01	213.12400000000002
2004-01-01	222.06900000000002
2005-01-01	275.02900000000000
2006-01-01	321.20700000000000
2007-01-01	378.04100000000000
2008-01-01	452.78600000000000
2009-01-01	443.54900000000004
2010-01-01	532.75900000000000
2011-01-01	603.39500000000000
2012-01-01	737.56900000000000
2013-01-01	806.32300000000000
2014-01-01	872.14300000000000
2015-01-01	849.94800000000000
2016-01-01	769.14000000000000