Year	current US$
1970	83545210.0840336
1971	68604516.373356
1972	74768717.6592965
1973	91787500
1974	90450526.3157893
1975	97710556.3480742
1976	75065341.1586208
1977	86545506.5857948
1978	61432369.970852
1979	77244251.7662171
1980	93544464.6098003
1981	87833766.2337662
1982	105991158.097069
1983	107971058.223544
1984	105677122.64151
1985	130974521.354934
1986	133947323.340471
1987	139726324.728261
1988	167068217.541654
1989	180348404.993065
1990	151497254.118822
1991	187442639.593909
1992	193617613.506731
1993	258496481.78808
1994	302786887.899636
1995	308628292.682928
1996	383650153.790484
1997	425904931.501882
1998	404179984.484097
1999	387679209.049727
2000	391375979.487904
2001	365888495.696551
2002	372486882.709599
2003	413330933.767849
2004	435933796.548347
2005	494846776.48123
2006	550716571.611738
2007	606783496.014978
2008	722623460.587056
2009	723506110.759252
2010	986323276.114961
2011	1127308873.33809
2012	990037050.89982
2013	977241331.302099
2014	1279984235.10461
2015	1531901090.28439
2016	2155731366.02102
2017	2113527359.90865
2018	1506400528.69932
2019	1415616482.17584
2020	1358759997.34986
2021	1421132078.26655