Year	current US$
1981	50254174784.6374
1982	49347088710.574165
1983	41903829642.33608
1984	43669065580.46919
1985	44661895723.426674
1986	45279717199.903
1987	52562688328.77699
1988	58396661427.32001
1989	59532857832.07601
1990	73982720050.51636
1991	62829073227.186806
1992	42808343491.76077
1993	46217707466.10986
1994	50183778348.53088
1995	74207009591.61829
1996	87492355924.45349
1997	96927101772.84186
1998	104736243542.03186
1999	55449898524.05927
2000	56173344211.04589
2001	58178955519.155975
2002	80040896969.52368
2003	85291914672.83069
2004	91653417985.52275
2005	109322895055.91824
2006	129932689762.84378
2007	156060158248.7575
2008	190516331743.80273
2009	184187180880.82983
2010	201340287584.4419
2011	211373081596.51404
2012	225063727484.8295
2013	240836539083.74713
2014	258304960885.45398
2015	235304127903.58224
2016	209648007464.97556
2017	213348688046.48584
2018	232543321124.99548
2019	251628066270.0745
2020	261023952256.2925
2021	262749505822.92868
2022	283152491295.35693
2023	262482971889.678