Year	current US$
1986	360307007.650873
1987	427287407.077612
1988	522854651.645934
1989	617664722.015115
1990	683773980.829681
1991	780780694.188568
1992	856656339.804028
1993	960989787.715297
1994	1106737203.07309
1995	1162941066.03208
1996	1211278786.74346
1997	1336018162.74569
1998	1474846207.03778
1999	1505350759.72449
2000	1657709353.36425
2001	1644062996.16331
2002	1622332081.4401
2003	1777022032.95466
2004	1942929574.70071
2005	1639719957.52302
2006	2105403812.15326
2007	2012381296.21543
2008	2431892488.23828
2009	2208167313.42423
2010	2058374498.59793
2011	2109879864.34631
2012	2227468288.83999
2013	2275254390.26909
2014	2394184991.053
2015	2511924645.18289
2016	2518955855.90613
2017	2578785125.25219
2018	2634165034.17004
2019	2842228351.01809
2020	2235240728.52526
2021	2662868129.82011