Year	US Dollars
1990	260134753.88706
1991	299054533.56601
1992	327230390.02999
1993	316893878.77213
1994	354775738.47676
1995	388131791.51992
1996	389521714.17885
1997	643087480.79932
1998	660389599.27564
1999	669464098.4659
2000	594701428.9203
2001	562701055.4132
2002	548827222.48756
2003	597868558.69309
2004	652520554.34235
2005	705811603.87482
2006	782163668.40549
2007	793527781.72517
2008	787876541.23796
2009	648167647.73999
2010	705439398.74459
2011	806095347.63475
2012	1042263692.17494
2013	1159710423.90312
2014	1216742746.07805
2015	1305436443.39925
2016	1326687523.84179
2017	1389978466.47681