Year current US$ 1985 949999.988079071 1986 159999.99642372102 1987 2099999.90463257 1988 639999.985694885 1989 2640000.10490417 1991 -579999.983310699 1992 -540000.021457672 1993 -550000.011920929 1994 -569999.992847443 1995 -610000.014305115 1996 -579999.983310699 1997 460000.00834465 1998 -529999.971389771 1999 -620000.004768372 2000 -460000.00834465 2001 -699999.988079071 2002 800000.011920929 2003 -39999.9991059303 2004 870000.004768372 2005 720000.028610229 2006 2740000.00953674 2007 750000 2008 3960000.03814697 2009 2559999.94277954 2010 980000.019073486 2011 1909999.9666214 2012 680000.007152557 2013 -610000.014305115 2014 819999.992847443 2015 -1162212.0141983 2016 1755869.98462677 2017 193542.16754436502 2018 -2306459.90371704 2019 7642610.0730896 2020 1806886.79218292 2021 -1034000.0391006501 2022 -1116179.9430847198