Year	constant 2010 US$
1981	2959843845615.12
1982	3038691086567.19
1983	3136134880414.91
1984	3264445970666.2
1985	3397073945885.38
1986	3489591362708.37
1987	3686015173385.2
1988	3843029517172.4
1989	3980504745095.56
1990	4154065652192.6
1991	4280735113910.06
1992	4380193738845.71
1993	4428326338092.04
1994	4576618925800.71
1995	4690977296774.57
1996	4919828796010.39
1997	5178275909289.73
1998	5302498468021.68
1999	5483331630068.64
2000	5778422452484.86
2001	6010704647612.52
2002	6308193932259.88
2003	6625591126039.65
2004	7098482270670.77
2005	7619346281330.64
2006	8245935543671.96
2007	9046002615921.54
2008	9612778024902.62
2009	9919929398491.8
2010	10568932738682
2011	11225718348520.3
2012	11894514581283
2013	12546851107111.5
2014	13142182716812.5
2015	13717154812401.3
2016	14300275698525.7
2017	15037089609890.4
2018	15803447338055.1