Year	US Dollars
1990	369650404.63639
1991	386848062.94033
1992	427427897.29712
1993	456699331.47269
1994	456322415.07135
1995	502815533.58021
1996	523455856.9012
1997	545881976.34741
1998	574138638.18272
1999	590587842.35316
2000	614833070.62698
2001	646353297.47838
2002	697932663.0226
2003	757540158.60681
2004	804569746.8653
2005	853761352.26335
2006	959352933.39781
2007	977709230.50888
2008	1064356617.38347
2009	1064658159.24092
2010	1042852930.48968
2011	1058714670.73699
2012	1108293142.77316
2013	1153264368.87692
2014	1187968639.03199
2015	1212596552.43794
2016	1247683256.80861
2017	1293026149.78879