Year	Current U.S. Dollars
1970-01-01	287784287.784288
1971-01-01	355707666.385847
1972-01-01	447332421.340629
1973-01-01	689137427.120086
1974-01-01	2359350585.195320
1975-01-01	2402879690.640340
1976-01-01	3017358858.555780
1977-01-01	3169487168.476890
1978-01-01	3635946168.330370
1979-01-01	5167095380.701240
1980-01-01	8370084714.246650
1981-01-01	9196263818.681320
1982-01-01	8144697939.560440
1983-01-01	6926593681.318680
1984-01-01	7073076895.604390
1985-01-01	6721703104.395600
1986-01-01	5676923214.285710
1987-01-01	5925000164.835170
1988-01-01	6339176098.901100
1989-01-01	6685906428.571430
1990-01-01	7581428736.263740
1991-01-01	7083516620.879120
1992-01-01	7868956126.373630
1993-01-01	7365109862.637360
1994-01-01	7589314670.329670
1995-01-01	8375020302.197800
1996-01-01	9323296071.428570
1997-01-01	11626977609.890100
2004-01-01	29492307692.307700
2005-01-01	38814835164.835200
2006-01-01	57601648351.648300
2007-01-01	75473076923.076900
2008-01-01	108507967032.967000
2009-01-01	88385714285.714300
2010-01-01	112178571428.571000
2011-01-01	154504329945.055000
2012-01-01	174708791208.791000
2013-01-01	188364010989.011000
2014-01-01	196924225274.725000
2015-01-01	161076083516.484000
2016-01-01	151342582417.582000
2017-01-01	167185714285.714000