Year current US$ 1973 140000.000596046 1974 2990000.00953674 1975 1950000.04768372 1976 2230000.01907349 1977 109999.999403954 1978 50000.0007450581 1980 409999.99642372096 1981 3480000.01907349 1982 1320000.05245209 1983 1480000.01907349 1984 2589999.91416931 1985 2279999.97138977 1986 460000.00834465 1987 479999.989271164 1988 400000.00596046395 1989 750000 1990 639999.985694885 1991 109999.999403954 1992 289999.99165535 1993 1039999.96185303 1994 289999.99165535 1995 209999.993443489 1996 280000.001192093 1997 1090000.0333786 1998 189999.99761581398 1999 1240000.0095367401 2000 189999.99761581398 2001 819999.992847443 2002 949999.988079071 2003 1299999.95231628 2004 2829999.92370605 2005 2500000 2006 1649999.97615814 2007 2910000.08583069 2008 1639999.98569489 2009 2630000.1144409203 2010 1340000.0333786 2011 720000.028610229 2012 1769999.98092651 2013 810000.002384186 2014 500000 2015 540000.021457672 2016 720000.028610229 2017 730000.019073486 2018 889999.985694885 2019 280000.001192093 2020 270000.010728836 2021 109999.999403954 2022 340000.00357627904