Year	2011 U.S. Dollars
1960-01-01	46951
1961-01-01	48026
1962-01-01	50049
1963-01-01	51519
1964-01-01	53332
1965-01-01	55397
1966-01-01	57295
1967-01-01	57383
1968-01-01	58922
1969-01-01	59294
1970-01-01	59075
1971-01-01	60822
1972-01-01	62223
1973-01-01	63727
1974-01-01	62213
1975-01-01	62785
1976-01-01	64064
1977-01-01	64693
1978-01-01	65508
1979-01-01	65717
1980-01-01	65217
1981-01-01	66133
1982-01-01	65380
1983-01-01	67453
1984-01-01	69475
1985-01-01	70921
1986-01-01	71766
1987-01-01	72217
1988-01-01	73586
1989-01-01	74712
1990-01-01	75227
1991-01-01	75754
1992-01-01	77920
1993-01-01	79081
1994-01-01	80521
1995-01-01	81408
1996-01-01	83305
1997-01-01	85154
1998-01-01	87605
1999-01-01	90477
2000-01-01	91921
2001-01-01	92858
2002-01-01	94791
2003-01-01	96243
2004-01-01	98505
2005-01-01	99803
2006-01-01	100602
2007-01-01	101409
2008-01-01	101522
2009-01-01	102185
2010-01-01	105235
2011-01-01	106541