Year	US Dollars
1990	221779117897.27002
1991	236237347129.77106
1992	256907697115.65598
1993	266867114110.49698
1994	281352696283.17004
1995	302969391501.82501
1996	319955316856.55402
1997	327214347948.27997
1998	338814207922.91699
1999	356735638032.625
2000	378922806811.06799
2001	395078315555.59399
2002	421736483116.70996
2003	462576357519.43494
2004	505830364697.85492
2005	561377910469.77991
2006	612899643028.76904
2007	658852178111.98108
2008	684938407563.31714
2009	714272628425.91699
2010	743097870834.51599
2011	784383239309.48596
2012	832217599799.38599
2013	883026219765.83569
2014	945236289216.29431
2015	1004747798608.93005
2016	1074097407257.12012
2017	1148420446241.19995