Year	current US$
1960	199878312.17925537
1961	229133799.2961156
1962	250410513.6063899
1963	306057298.7991282
1964	296851036.1644821
1965	313013166.7091527
1966	336528695.83775485
1967	415770014.36619776
1968	433357224.3004136
1969	479597825.5070161
1970	590456655.3831744
1971	647331988.2399045
1972	690532081.3771518
1973	845158696.7462974
1974	1128664297.2039468
1975	2229988646.478076
1976	2755179991.817731
1977	3530930112.853865
1978	3295676572.4963646
1979	3815206145.7749333
1980	5675364256.781026
1981	5550463469.221405
1982	5462118517.913433
1983	4509201733.629594
1984	3747624435.1081476
1985	3779465368.180463
1986	4569923121.043551
1987	4839675926.895137
1988	5786813414.381601
1989	7065598356.300592
1990	7781920090.187958
1991	8054289862.23016
1992	8362423940.032794
1993	8088129003.118615
1994	8392956448.984028
1995	9350603852.459017
1996	9414841824.27561
1997	8909512889.681957
1998	10128121959.731855
1999	10930107546.40331
2000	10480934330.886505
2001	10202097545.115335
2002	11120357844.115778
2003	13498881034.94502
2004	16273570043.900457
2005	17759588395.1825
2006	20022003498.801613
2007	25415959043.65704
2008	31838277749.642757
2009	29413188368.023235
2010	28576866443.519295
2011	31926945719.186024
2012	32032422991.628273
2013	32894636657.12371
2014	32184291445.84615
2015	28563811941.155724
2016	32003137198.602375
2017	33351946626.485065
2018	35475429523.35272
2019	35056913348.7143
2020	31825825982.033825
2021	37338888293.06477
2022	35511964773.94185
2023	38082287504.67045