Year	US Dollars
1990	984826820.42964
1991	1044348361.56781
1992	1087371578.37905
1993	1130652812.61276
1994	1197767608.42668
1995	1261402563.62131
1996	1436778001.0816
1997	1579828072.25415
1998	1131757110.71542
1999	1166570822.28421
2000	1298456233.77437
2001	1347277015.44527
2002	1381993652.02188
2003	1414545045.53925
2004	1499300671.07361
2005	1613362505.45542
2006	1718756887.32265
2007	1830154159.13547
2008	1905260329.13817
2009	1991127998.00852
2010	2125581762.1698
2011	2368745194.2087
2012	2370083831.12048
2013	2425942614.23497
2014	2632068677.74784
2015	2793724067.28556
2016	3008962742.56629
2017	3171048265.80657