Year current US$ 1986 109999.999403954 1987 209999.993443489 1988 259999.990463257 1989 349999.99403953605 1990 129999.995231628 1991 150000.005960464 1993 219999.998807907 1994 1899999.97615814 1995 2160000.08583069 1996 170000.00178813902 1997 119999.997317791 1998 319999.99284744303 1999 449999.988079071 2000 490000.009536743 2001 180000.00715255702 2002 439999.997615814 2003 409999.99642372096 2004 2230000.01907349 2005 1629999.99523163 2006 2900000.09536743 2007 2279999.97138977 2008 9079999.92370605 2009 479999.989271164 2010 40310001.373291 2011 19149999.6185303 2012 15210000.038146999 2013 5679999.82833862 2014 4329999.92370605 2015 2440000.05722046 2016 8069999.694824221 2017 2500000 2018 2240000.00953674 2019 1059999.9427795399 2020 1230000.01907349 2021 5619999.88555908 2022 8250000