Year	Millions of 2011 U.S. Dollars
1960-01-01	107474
1961-01-01	112825
1962-01-01	118705
1963-01-01	123871
1964-01-01	132488
1965-01-01	137206
1966-01-01	141544
1967-01-01	147030
1968-01-01	153208
1969-01-01	163381
1970-01-01	173776
1971-01-01	180155
1972-01-01	189665
1973-01-01	200876
1974-01-01	209090
1975-01-01	205981
1976-01-01	217461
1977-01-01	218493
1978-01-01	224472
1979-01-01	229262
1980-01-01	239150
1981-01-01	238482
1982-01-01	239901
1983-01-01	240649
1984-01-01	246584
1985-01-01	250657
1986-01-01	255226
1987-01-01	261114
1988-01-01	273446
1989-01-01	282933
1990-01-01	291810
1991-01-01	297159
1992-01-01	301707
1993-01-01	298805
1994-01-01	308447
1995-01-01	315482
1996-01-01	319976
1997-01-01	331927
1998-01-01	338329
1999-01-01	350305
2000-01-01	363160
2001-01-01	366094
2002-01-01	371072
2003-01-01	374065
2004-01-01	386288
2005-01-01	393085
2006-01-01	403770
2007-01-01	415559
2008-01-01	419588
2009-01-01	407836
2010-01-01	416962
2011-01-01	424966