Year	Millions of 2011 U.S. Dollars
1960-01-01	493997
1961-01-01	534536
1962-01-01	567702
1963-01-01	599551
1964-01-01	616317
1965-01-01	636464
1966-01-01	674552
1967-01-01	722977
1968-01-01	770292
1969-01-01	817265
1970-01-01	860667
1971-01-01	876315
1972-01-01	908655
1973-01-01	973405
1974-01-01	1026943
1975-01-01	1005479
1976-01-01	1077123
1977-01-01	1104703
1978-01-01	1140497
1979-01-01	1208461
1980-01-01	1249911
1981-01-01	1260463
1982-01-01	1265676
1983-01-01	1280474
1984-01-01	1321781
1985-01-01	1358765
1986-01-01	1397626
1987-01-01	1442237
1988-01-01	1502730
1989-01-01	1553648
1990-01-01	1585538
1991-01-01	1609856
1992-01-01	1622299
1993-01-01	1613960
1994-01-01	1651019
1995-01-01	1698764
1996-01-01	1719016
1997-01-01	1746897
1998-01-01	1768382
1999-01-01	1788996
2000-01-01	1859766
2001-01-01	1894892
2002-01-01	1903622
2003-01-01	1899724
2004-01-01	1934591
2005-01-01	1954628
2006-01-01	1998097
2007-01-01	2034257
2008-01-01	2011087
2009-01-01	1898677
2010-01-01	1938471
2011-01-01	1950050