Year	US Dollars
2000	173943493.60016
2001	187360800.58689
2002	194163918.11673
2003	198125795.62441
2004	218727612.56094
2005	246217124.83238
2006	241968019.77496
2007	249796507.39855
2008	234465407.50075
2009	237254592.73885
2010	235873484.54823
2011	257493784.22651
2012	268686666.91602
2013	262289526.5447
2014	277740655.45172
2015	297997109.70616
2016	308036109.77122
2017	303086851.50255