Year	current US$
1980	19839230769.23077
1981	19870000000
1982	19342000000
1983	16563666666.666668
1984	17594944444.444447
1985	17155421052.631578
1986	20249294117.64706
1987	28101000000
1988	22555941176.47059
1989	21988444444.444447
1990	20632090909.090908
1991	10943548387.096775
1992	10350515463.917526
1993	10832064941.653982
1994	9697416974.169743
1995	18991484420.359978
1996	12294964837.623463
1997	11316127378.96127
1998	15031055046.757534
1999	13627325461.174295
2000	13245990274.45809
2001	14183446025.738909
2002	16403043849.82968
2003	21144957990.468067
2004	26157743368.871613
2005	29868657858.008186
2006	34380536495.67393
2007	44432811756.47305
2008	54480684188.44424
2009	52023801230.120026
2010	50760929302.51474
2011	57737040780.015656
2012	54288135058.79262
2013	55852123989.95043
2014	57157782909.93072
2015	50811995688.67711
2016	53964253211.83995
2017	59309748166.11794
2018	66370132238.3914
2019	68881010245.54976
2020	70368758395.14104
2021	84041493015.66185
2022	90346169914.93486
2023	101584384672.78587