Year current US$ 1996 7809999.791905284 1997 16600000.321865125 1998 28870000.0699609 1999 6400000.080466273 2000 9850000.20265579 2001 11049999.717623 2002 12120000.043883916 2003 15879999.889060853 2004 21109999.59148467 2005 3909999.914467334 2006 13280000.248923866 2007 17450000.338256404 2008 10230000.179260975 2009 7939999.908208849 2010 3840000.0259280177 2011 4620000.094175337 2012 3680000.0146031342 2013 2760000.07800758 2014 3099999.902769925 2015 2389999.9726563734 2016 180000.0052899118 2017 239999.99836087218 2018 389999.99500811053 2019 340000.0128895046 2020 0 2021 1680000.007152557 2022 659999.9759346246