Year	current US$
1980	9271790751.705114
1981	8936110367.596277
1982	8465338186.198257
1983	7720277361.132118
1984	7891267115.104784
1985	7533257616.691767
1986	6300229139.781603
1987	7247275447.491051
1988	7432520809.88932
1989	7897714590.48888
1990	8803516956.135597
1991	7717688605.68401
1992	8178246742.929142
1993	8686984319.609547
1994	9596444617.433468
1995	10947574963.07251
1996	11011312981.856049
1997	11345366914.90097
1998	10637003893.367928
1999	11392385813.330757
2000	14473958091.333206
2001	14154993561.333519
2002	15563182477.917885
2003	19185565954.560448
2004	22617474813.579834
2005	27565769073.25215
2006	33378927135.18045
2007	40404689295.54077
2008	43676312576.57933
2009	33164418130.213745
2010	38336232356.12421
2011	46406901669.41496
2012	46785191153.39299
2013	48425374662.91872
2014	49606660402.92651
2015	42861558046.11061
2016	45691229910.585495
2017	52773899657.08179
2018	58832097325.09491
2019	60212638960.46561
2020	48194079560.61275
2021	63366283045.027374
2022	72250839236.1997
2023	68032776654.20776