Year	Millions of 2011 U.S. Dollars
1960-01-01	263862
1961-01-01	272134
1962-01-01	291167
1963-01-01	306618
1964-01-01	326471
1965-01-01	347260
1966-01-01	370336
1967-01-01	381132
1968-01-01	399731
1969-01-01	419849
1970-01-01	432572
1971-01-01	450384
1972-01-01	474912
1973-01-01	507986
1974-01-01	526735
1975-01-01	536338
1976-01-01	564223
1977-01-01	583735
1978-01-01	606814
1979-01-01	629903
1980-01-01	643525
1981-01-01	666069
1982-01-01	647026
1983-01-01	664611
1984-01-01	703254
1985-01-01	736870
1986-01-01	754708
1987-01-01	786808
1988-01-01	825947
1989-01-01	847582
1990-01-01	849218
1991-01-01	831451
1992-01-01	838728
1993-01-01	858342
1994-01-01	899578
1995-01-01	924843
1996-01-01	939814
1997-01-01	979530
1998-01-01	1019665
1999-01-01	1076071
2000-01-01	1132385
2001-01-01	1152584
2002-01-01	1186292
2003-01-01	1208607
2004-01-01	1246315
2005-01-01	1283942
2006-01-01	1320188
2007-01-01	1349232
2008-01-01	1358525
2009-01-01	1320897
2010-01-01	1363363
2011-01-01	1396160