Year current US$ 1984 19999.9995529652 1990 150000.005960464 1991 129999.995231628 1992 280000.001192093 1993 920000.016689301 1994 1669999.95708466 1995 2099999.90463257 1996 1779999.97138977 1997 1620000.00476837 1998 1460000.03814697 2004 310000.002384186 2005 1509999.9904632599 2006 790000.021457672 2007 1620000.00476837 2008 2109999.89509583 2009 1570000.05245209 2010 1059999.9427795399 2011 2940000.05722046 2012 172399.997711182 2016 2151247.97821045 2017 2207089.90097046 2018 2029103.75595093 2021 1585170.03059387 2022 4557199.9549865695