Year	US Dollars
1990	465155688154.54205
1991	542885650544.54901
1992	572626952606.93396
1993	583047132571.55591
1994	590542208314.1499
1995	609975727019.18408
1996	628014337853.75281
1997	645452655075.91687
1998	677528787753.38513
1999	664821873082.79797
2000	712223111208.06409
2001	723161050757.97107
2002	711605850888.23792
2003	804640234232.25293
2004	895422590373.14673
2005	977317140612.90503
2006	1037393157263.55017
2007	1090260688961.49011
2008	1183744340992.32007
2009	1171045358957.43994
2010	1236785860821.08008
2011	1390008608968.98047
2012	1490373845660.01953
2013	1557650759195.87012
2014	1648749175301.22998
2015	1747492951010.92993
2016	1802205665961.75
2017	1804185397947.12012