Year	US Dollars
1994	5189679900.36142
1995	5707683396.88462
1996	6182682591.05842
1997	7889478954.42916
1998	10383244350.6915
1999	12433126077.6192
2000	10875521307.7989
2001	10056007785.5931
2002	9896772391.58793
2003	11063774951.0675
2004	12241058280.3649
2005	14277038636.8369
2006	14222353044.206
2007	14537618359.8963
2008	13736016415.4325
2009	16072324537.6181
2010	16628360397.2923
2011	18332734924.1935
2012	21472348664.5321
2013	21215022023.4547
2014	21821030424.284
2015	25194750974.7662
2016	26541961112.7486
2017	26031155639.9013