Year current US$ 1987 29999.999329447703 1988 9999.99977648258 1989 19999.9995529652 1992 39999.9991059303 1994 9999.99977648258 1995 29999.999329447703 1996 59999.9986588955 1997 79999.9982118607 1998 50000.0007450581 1999 39999.9991059303 2000 50000.0007450581 2001 29999.999329447703 2002 389999.98569488496 2003 140000.000596046 2004 150000.005960464 2005 119999.997317791 2006 540000.021457672 2007 1250000 2008 1210000.03814697 2009 1169999.95708466 2010 829999.983310699 2011 1250000 2012 400000.00596046395 2013 709999.978542328 2014 259999.990463257 2015 280000.001192093 2016 360000.01430511504 2017 360000.01430511504 2018 219999.998807907 2019 39999.9991059303 2020 29999.999329447703 2021 109999.999403954 2022 100000.00149011599