Year current US$ 1975 109999.999403954 1976 39999.9991059303 1977 50000.0007450581 1978 170000.00178813902 1979 109999.999403954 1980 50000.0007450581 1981 70000.0002980232 1982 79999.9982118607 1983 100000.00149011599 1984 50000.0007450581 1985 19999.9995529652 1986 170000.00178813902 1987 19999.9995529652 1988 39999.9991059303 1989 100000.00149011599 1990 319999.99284744303 1991 340000.00357627904 1992 819999.992847443 1993 639999.985694885 1994 610000.014305115 1995 939999.997615814 1996 889999.985694885 1997 680000.007152557 1998 759999.990463257 1999 529999.971389771 2000 409999.99642372096 2001 949999.988079071 2002 560000.002384186 2003 660000.026226044 2004 610000.014305115 2005 730000.019073486 2006 730000.019073486 2007 899999.976158142 2008 740000.009536743 2009 680000.007152557 2010 699999.988079071 2011 810000.002384186 2012 664975.047111511 2013 726273.059844971 2014 1282940.03009796 2015 1360875.2489089998 2016 1049428.34377289 2017 962000.012397766 2018 961818.516254425 2019 1230000.01907349 2020 1023000.0019073499 2021 992999.970912933 2022 695999.979972839