Year	current US$
1981	2253652028.9855075
1982	2501077294.6859903
1983	2721299371.9806767
1984	2878053381.6425123
1985	3148164637.6811595
1986	3335149903.381643
1987	3624393526.570049
1988	3856522705.31401
1989	4106455990.338165
1990	4420290048.309179
1991	3995028888.88889
1992	2815106297.9482603
1993	2535136830.769951
1994	2341486123.8393307
1995	2539190414.507772
1996	2844274836.5857906
1997	2350825566.914108
1998	2567520234.2569046
1999	2761406622.3754807
2000	3086594489.8849335
2001	3169001525.0126085
2002	3253622074.9880013
2003	3686641466.115028
2004	4059937316.5496836
2005	4854419876.092283
2006	5894231082.030665
2007	7708459017.511939
2008	10258394969.710083
2009	12576240282.176792
2010	12498876332.324879
2011	13238047828.784119
2012	16709934859.461027
2013	18902118013.045383
2014	22184834811.69267
2015	25542308013.464836
2016	27285175011.077488
2017	29955664207.48334
2018	30682184560.30388
2019	35629215452.44838
2020	39648267936.325645
2021	40650358121.0845
2022	46327529688.87168
2023	60540439814.63713