Year	current US$
1995	927778426.2035987
1996	998165500.0774636
1997	984504076.3143625
1998	1318411825.5693555
1999	1443612846.6548162
2000	1475215373.4761176
2001	1629462885.3872175
2002	1840559321.956614
2003	2094376180.7675905
2004	2158285284.2587113
2005	2740615084.0583906
2006	3074292754.200369
2007	4003336033.344073
2008	4900188000.115797
2009	4254369558.3568697
2010	4034222723.1885953
2011	4564552102.5822115
2012	4741440190.475572
2013	5072423447.929446
2014	5059666955.4061165
2015	4341562037.132415
2016	5481752263.765455
2017	7387315887.850465
2018	7230774394.400821