Year	current US$
1987	82244392523.36449
1988	93569142857.14285
1989	56331791940.28441
1990	109038551074.77814
1991	152618772836.91663
1992	187270475206.98697
1993	163839382682.68268
1994	180006952200
1995	176908603000
1996	186487153500
1997	203028516700
1998	206433800000
1999	198869454200
2000	197044177500
2001	185164262200
2002	60489618364.28438
2003	80632168516.44435
2004	105926917928.17867
2005	125262782955.78603
2006	147139416222.7131
2007	179796371906.6547
2008	228051225933.26416
2009	209702422221.03635
2010	272113324478.66208
2011	340469249246.98425
2012	354361120355.9971
2013	364267951166.4331
2014	344124011884.78424
2015	391974496653.94836
2016	366420786669.08344
2017	429554843450.4094
2018	364593335904.84735
2019	296089364842.8056
2020	253449670108.80634
2021	307330236067.637
2022	413521010669.4024
2023	430166955957.604