Year	US Dollars
2001	221458538.15966
2002	230712396.50659
2003	254836082.31566
2004	270962178.0737
2005	301446531.92445
2006	355047030.4733
2007	379371725.46788
2008	405764111.86121
2009	418291733.36387
2010	453686673.69243
2011	483633762.25155
2012	496869854.74352
2013	543833580.88982
2014	594404421.25488
2015	611778852.21221
2016	649334087.82677
2017	688689512.31829