Year	Millions of 2011 U.S. Dollars
1960-01-01	684721
1961-01-01	716424
1962-01-01	749838
1963-01-01	770928
1964-01-01	822282
1965-01-01	866310
1966-01-01	890480
1967-01-01	887741
1968-01-01	936151
1969-01-01	1005993
1970-01-01	1056662
1971-01-01	1089764
1972-01-01	1136628
1973-01-01	1190930
1974-01-01	1201530
1975-01-01	1191116
1976-01-01	1250067
1977-01-01	1291910
1978-01-01	1330777
1979-01-01	1386009
1980-01-01	1405535
1981-01-01	1412974
1982-01-01	1407395
1983-01-01	1429525
1984-01-01	1469880
1985-01-01	1504098
1986-01-01	1538501
1987-01-01	1560074
1988-01-01	1617909
1989-01-01	1680952
1990-01-01	1769286
1991-01-01	2460422
1992-01-01	2507462
1993-01-01	2482335
1994-01-01	2543692
1995-01-01	2586350
1996-01-01	2606802
1997-01-01	2652090
1998-01-01	2701468
1999-01-01	2752014
2000-01-01	2836161
2001-01-01	2879111
2002-01-01	2879403
2003-01-01	2868593
2004-01-01	2901901
2005-01-01	2921769
2006-01-01	3029874
2007-01-01	3128922
2008-01-01	3162815
2009-01-01	3000657
2010-01-01	3111392
2011-01-01	3204596