Year	current US$
1970	21247936165.106792
1971	23237266974.933075
1972	24608159340.659344
1973	29363973542.38117
1974	23323931743.805515
1975	22514495575.221237
1976	25095748427.672955
1977	35779173207.74464
1978	49273407478.42761
1979	65627191867.8526
1980	79261710434.58052
1981	71384598070.73955
1982	68543116701.60726
1983	65719243595.57375
1984	62921150571.960625
1985	71941799281.31416
1986	76808531222.51538
1987	105515129923.19006
1988	132394669156.88367
1989	144540320680.62827
1990	163159282670.45453
1991	152696788359.78836
1992	139192151632.15164
1993	123432660467.90643
1994	137362156412.61096
1995	258791226132.23923
1996	274780031201.24805
1997	285664702030.12445
1998	294044385558.13184
1999	287762497977.6735
2000	286748373430.17096
2001	273376997265.00647
2002	285604016786.57074
2003	324848979591.83673
2004	374540461369.46173
2005	403281818181.8182
2006	446726770929.16284
2007	516230492196.8787
2008	465998161764.7059
2009	331152827543.231
2010	363301149230.1124
2011	403282377288.0867
2012	407994990176.32935
2013	421625170346.1516
2014	483468284258.6837
2015	478939982156.44666
2016	431305881183.8514
2017	459437331182.1491
2018	482357066712.5814
2019	484257282548.13324
2020	490509240556.3564
2021	558446673803.0612
2022	529424493527.3639
2023	582677849481.2888