Year	current US$
1960	237487014.9809553
1961	259373713.74811348
1962	279300409.6406008
1963	388733903.47639173
1964	450147326.8827461
1965	501434068.7699675
1966	568400833.654556
1967	556640816.4065307
1968	569707502.23767
1969	596494208.1915053
1970	706254369.1730747
1971	710948608.572009
1972	971074878.4560406
1973	1200820192.1148596
1974	1460698850.5097697
1975	1633910726.182545
1976	1692257753.558325
1977	2189102187.7614236
1978	2629485993.777315
1979	2958725888.0975595
1980	4047530344.993277
1981	4524494113.81761
1982	4910952850.741974
1983	4745288099.084545
1984	5009724181.423614
1985	4769955562.572039
1986	4697761948.554335
1987	4786401856.139651
1988	5020652723.039671
1989	5462850915.631107
1990	6072739035.999815
1991	6729706139.074775
1992	7697805002.552322
1993	8449571597.007881
1994	9134659350.708733
1995	10975677830.940989
1996	11200413387.391684
1997	10767620129.178791
1998	7050040766.40848
1999	8695789473.684212
2000	9533947368.421053
2001	11170526315.789474
2002	13067368421.052631
2003	14291052631.578949
2004	15693421052.63158
2005	16468572720.176853
2006	18168970581.29965
2007	22387623346.615005
2008	26554386865.28972
2009	26391522435.929264
2010	32084200147.341568
2011	39540157313.57126
2012	43525626934.205215
2013	44338633708.55839
2014	45059978123.10945
2015	39437040231.01815
2016	37852512757.66333
2017	38907669469.24745
2018	42945038201.99102
2019	42554525681.53783
2020	43741991282.46535
2021	47532496479.25141
2022	47462856444.32619
2023	48149461272.45642