Year	Millions of 2011 U.S. Dollars
1960-01-01	574859
1961-01-01	642998
1962-01-01	698275
1963-01-01	759635
1964-01-01	844605
1965-01-01	892520
1966-01-01	983989
1967-01-01	1093053
1968-01-01	1223224
1969-01-01	1369438
1970-01-01	1510249
1971-01-01	1576536
1972-01-01	1709178
1973-01-01	1846470
1974-01-01	1823846
1975-01-01	1880231
1976-01-01	1954971
1977-01-01	2040800
1978-01-01	2148392
1979-01-01	2266209
1980-01-01	2330061
1981-01-01	2427384
1982-01-01	2509348
1983-01-01	2586152
1984-01-01	2701595
1985-01-01	2872697
1986-01-01	2954025
1987-01-01	3075360
1988-01-01	3295146
1989-01-01	3472101
1990-01-01	3665580
1991-01-01	3787436
1992-01-01	3818457
1993-01-01	3824989
1994-01-01	3858020
1995-01-01	3932956
1996-01-01	4035609
1997-01-01	4100002
1998-01-01	4017873
1999-01-01	4009864
2000-01-01	4100386
2001-01-01	4114962
2002-01-01	4126876
2003-01-01	4196419
2004-01-01	4295485
2005-01-01	4351443
2006-01-01	4425109
2007-01-01	4522116
2008-01-01	4475012
2009-01-01	4227680
2010-01-01	4415672
2011-01-01	4383325