Year	current US$
1995	4889271379.96491
1996	4921989214.37705
1997	4856553545.55276
1998	4940392996.23389
1999	5229293528.58822
2000	5143980619.70506
2001	4779461827.20429
2002	5202148512.1254
2003	5570545164.12086
2004	6821243635.2381
2005	7928770044.53008
2006	8653783331.89303
2007	10352695064.9674
2008	11641719420.1495
2009	10285660212.2602
2010	11031422948.6278
2011	13943983444.6144
2012	16642981687.331
2013	16822074094.0907
2014	18307784341.717
2015	19212074874.4402
2016	19514766266.1468
2017	24759190826.1003