Year current US$ 1991 39999.9991059303 1993 469999.998807907 1994 779999.971389771 1995 1610000.01430511 1996 1539999.96185303 1997 3500000 1998 4880000.11444092 1999 3700000.04768372 2000 2289999.96185303 2001 2299999.95231628 2002 4510000.228881841 2003 6920000.07629395 2004 8010000.22888184 2005 5880000.11444092 2006 4829999.92370605 2007 5519999.98092651 2008 8800000.19073486 2009 8369999.88555908 2010 6389999.8664856 2011 9359999.65667725 2012 10170000.076293899 2013 10409999.8474121 2014 13970000.2670288 2015 14539999.961853001 2016 11630000.1144409 2017 7039999.96185303 2018 6849999.90463257 2019 4329999.92370605 2020 8840000.15258789 2021 10079999.923706101 2022 11029999.7329712