Year current US$ 1970 319999.99284744303 1971 250000 1972 189999.99761581398 1973 90000.0035762787 1974 340000.00357627904 1975 1100000.02384186 1976 1139999.98569489 1977 1110000.01430511 1978 1100000.02384186 1979 349999.99403953605 1980 200000.00298023198 1982 50000.0007450581 1983 50000.0007450581 1984 39999.9991059303 1985 100000.00149011599 1986 79999.9982118607 1987 39999.9991059303 1988 100000.00149011599 1989 150000.005960464 1990 159999.99642372102 1991 519999.980926514 1992 709999.978542328 1993 1309999.9427795399 1994 1750000 1995 2170000.07629395 1996 2980000.01907349 1997 939999.997615814 1998 1320000.05245209 1999 959999.978542328 2000 839999.973773956 2001 860000.014305115 2002 259999.990463257 2003 720000.028610229 2004 810000.002384186 2005 699999.988079071 2006 699999.988079071 2007 790000.021457672 2008 639999.985694885 2009 970000.028610229 2010 850000.023841858 2011 819999.992847443 2012 544057.4884414669 2013 1027714.61009979 2014 895021.021366119 2015 835311.412811279 2016 1105835.31856537 2017 1083999.99141693 2018 1306654.93011475 2019 814999.997615814 2020 1018000.00667572 2021 865000.009536743 2022 800000.011920929