Year	current US$
1979	565100000
1980	127600000
1984	1106000000
1985	870400000
1986	697797855.736181
1987	1494713492.88541
1988	2055321112.62128
1989	2314331416.40602
1990	4492139367.77112
1991	3632638631.64972
1992	4099112901.67338
1993	4091948573.78823
1994	5841784447.80534
1995	14774091236.8743
1996	17844030407.574
1997	20407157512.0893
1998	27325171210.8305
1999	26354688442.6242
2000	26562047717.1752
2001	25648424839.5156
2002	28649702875.3915
2003	32579118213.2397
2004	35323859413.3981
2005	40863652301.1177
2006	46371052578.8457
2007	62966789524.5349
2008	59305603933.5405
2009	75923343669.465
2010	88821825714.386
2011	92646488277.0065
2012	103396170932.518
2013	102235904328.478
2014	96461531332.9525
2015	91394818430.4186
2016	110535283590.47
2017	108975251054.109
2018	111656116422.589
2019	117196226086.771
2020	140316302987.077
2021	152521861501.659
2022	153339778081.221
2023	169998923785.402