Year	Millions of 2000 Dollars
1960-01-01	268.55000000000000
1961-01-01	315.01599999999996
1962-01-01	354.31199999999995
1963-01-01	418.19900000000000
1964-01-01	503.43600000000000
1965-01-01	576.29900000000000
1966-01-01	701.57800000000000
1967-01-01	729.40100000000010
1968-01-01	784.72700000000000
1969-01-01	814.46399999999990
1970-01-01	885.37899999999990
1971-01-01	1012.21000000000000
1972-01-01	733.42400000000000
1973-01-01	895.64500000000000
1974-01-01	1150.58000000000000
1975-01-01	1325.87000000000000
1976-01-01	1864.62000000000000
1977-01-01	2261.50000000000000
1978-01-01	2344.10000000000000
1979-01-01	1939.83000000000000
1980-01-01	2397.09000000000000
1981-01-01	2799.71000000000000
1982-01-01	1103.00000000000000
1983-01-01	1136.11000000000000
1984-01-01	960.61000000000000
1985-01-01	340.49699999999996
1986-01-01	842.71200000000000
1987-01-01	1368.78000000000000
1988-01-01	1499.39000000000000
1989-01-01	1442.13000000000000
1990-01-01	1821.00000000000000
1991-01-01	2417.89000000000000
1992-01-01	2889.71000000000000
1993-01-01	3440.96000000000000
1994-01-01	3967.66000000000000
1995-01-01	3963.16000000000000
1996-01-01	5105.17000000000000
1997-01-01	5771.32000000000000
1998-01-01	6122.63000000000000
1999-01-01	5800.68000000000000
2000-01-01	5341.13000000000000
2001-01-01	5813.43000000000000
2002-01-01	4960.63000000000000
2003-01-01	5288.31000000000000
2004-01-01	4617.11000000000000
2005-01-01	5015.86000000000000
2006-01-01	6018.62000000000000
2007-01-01	7745.69000000000000
2008-01-01	10310.90000000000000
2009-01-01	8810.38000000000000
2010-01-01	9880.63000000000000
2011-01-01	12017.90000000000000
2012-01-01	14728.50000000000000
2013-01-01	17423.60000000000000
2014-01-01	20008.60000000000000
2015-01-01	22820.80000000000000
2016-01-01	22067.20000000000000