Year	Millions of 2011 U.S. Dollars
1960-01-01	157411
1961-01-01	156627
1962-01-01	165396
1963-01-01	175398
1964-01-01	186901
1965-01-01	195868
1966-01-01	201810
1967-01-01	215544
1968-01-01	227466
1969-01-01	243389
1970-01-01	259298
1971-01-01	268803
1972-01-01	275051
1973-01-01	287716
1974-01-01	292463
1975-01-01	298830
1976-01-01	309995
1977-01-01	315437
1978-01-01	322632
1979-01-01	335103
1980-01-01	345274
1981-01-01	359597
1982-01-01	359863
1983-01-01	358594
1984-01-01	380698
1985-01-01	401781
1986-01-01	411287
1987-01-01	431465
1988-01-01	450130
1989-01-01	470212
1990-01-01	477263
1991-01-01	473125
1992-01-01	485485
1993-01-01	505163
1994-01-01	529032
1995-01-01	546931
1996-01-01	568857
1997-01-01	593032
1998-01-01	622353
1999-01-01	648296
2000-01-01	668641
2001-01-01	685353
2002-01-01	712473
2003-01-01	735401
2004-01-01	765192
2005-01-01	788802
2006-01-01	810721
2007-01-01	848145
2008-01-01	869146
2009-01-01	880883
2010-01-01	902684
2011-01-01	922870