Year current US$ 1992 750000 1994 340000.00357627904 1997 900000.0357627871 1998 829999.983310699 1999 1329999.9833107 2000 2179999.94754791 2001 3399999.976158135 2002 3120000.094175344 2003 3939999.9976158077 2004 4740000.009536739 2005 9710000.06794929 2006 16200000.062584888 2007 19919999.793171875 2008 20530000.258237127 2009 14829999.826848509 2010 11930000.036954878 2011 10669999.741017824 2012 10910000.126808884 2013 14960000.008344658 2014 13619999.922811985 2015 13910000.279545786 2016 18309999.94277955 2017 14939999.956637617 2018 27439999.181777235 2019 22220000.02115964 2020 20060000.026598573 2021 24299999.78840352 2022 29670000.41529537