Year current US$ 1972 19999.9995529652 1985 -1149999.97615814 1986 50000.0007450581 1987 50000.0007450581 1988 150000.005960464 1989 1970000.02861023 1990 1179999.94754791 1991 1210000.03814697 1992 3579999.92370605 1993 1870000.00476837 1994 1820000.05245209 1995 930000.007152557 1996 430000.00715255697 1997 270000.010728836 1998 310000.002384186 1999 620000.004768372 2000 270000.010728836 2001 230000.004172325 2002 670000.016689301 2003 579999.983310699 2004 720000.028610229 2005 1539999.96185303 2006 1370000.00476837 2007 1899999.97615814 2008 1139999.98569489 2009 680000.007152557 2010 500000 2011 1330000.04291534 2012 100000.00149011599 2013 629999.995231628 2014 170000.00178813902 2015 -19999.9995529652 2016 469999.998807907 2017 189999.99761581398 2018 319999.99284744303 2019 259999.990463257 2020 370000.00476837205 2021 230000.004172325 2022 219999.998807907