Year current US$ 1970 449999.988079071 1971 560000.002384186 1972 620000.004768372 1973 230000.004172325 1974 939999.997615814 1975 660000.026226044 1976 910000.026226044 1977 569999.992847443 1978 1019999.98092651 1979 1000000 1980 289999.99165535 1981 119999.997317791 1982 29999.999329447703 1983 209999.993443489 1984 409999.99642372096 1985 660000.026226044 1986 879999.995231628 1987 600000.023841858 1988 340000.00357627904 1989 360000.01430511504 1990 419999.986886978 1991 889999.985694885 1992 1210000.03814697 1993 970000.028610229 1994 1179999.94754791 1995 1360000.01430511 1996 959999.978542328 1997 1279999.97138977 1998 1279999.97138977 1999 899999.976158142 2000 730000.019073486 2001 829999.983310699 2002 680000.007152557 2003 709999.978542328 2004 810000.002384186 2005 720000.028610229 2006 980000.019073486 2007 740000.009536743 2008 689999.997615814 2009 899999.976158142 2010 759999.990463257 2011 1320000.05245209 2012 701957.285404205 2013 1034888.62514496 2014 988047.0037460331 2015 1015808.34388733 2016 889478.921890259 2017 889999.985694885 2018 1093021.0351944 2019 925000.011920929 2020 1276000.02288818 2021 939000.010490417 2022 967000.007629395