Year current US$ 1980 150000.005960464 1981 289999.99165535 1982 280000.001192093 1983 200000.00298023198 1984 479999.989271164 1986 600000.023841858 1987 1929999.94754791 1988 10210000.038146999 1989 2170000.07629395 1990 2569999.9332428 1991 1649999.97615814 1992 1350000.02384186 1993 1169999.95708466 1994 1350000.02384186 1995 819999.992847443 1996 1210000.03814697 1997 1029999.97138977 1998 560000.002384186 1999 1149999.97615814 2000 689999.997615814 2001 610000.014305115 2002 750000 2003 829999.983310699 2004 1720000.02861023 2005 1019999.98092651 2006 1289999.96185303 2007 1110000.01430511 2008 970000.028610229 2009 -680000.007152557 2010 970000.028610229 2011 779999.971389771 2012 889999.985694885 2013 829999.983310699 2014 800000.011920929 2015 870000.004768372 2016 920000.016689301 2017 600000.023841858 2018 280000.001192093 2019 360000.01430511504 2020 550000.011920929 2021 639999.985694885 2022 779999.971389771