Year	current US$
1970	0
1971	338.186855651715
1972	349.750108682515
1973	397.47681620413
1974	1100.68790277569
1975	51392.4022993276
1976	48969.7278366034
1977	42768.695725106
1978	433220.81879973
1979	7771591.34645728
1980	22795267.1502317
1981	27675967.9114986
1982	21589155.5840948
1983	34611836.3846765
1984	44973329.8847655
1985	43015638.8880886
1986	26615928.2818883
1987	10370397.5270908
1988	12156449.1209104
1989	15788557.3624619
1990	25806970.9459932
1991	19034423.2193509
1992	9963581.18223437
1993	31948315.4236423
1994	32169752.0262069
1995	62409514.1669273
1996	58830850.0326463
1997	55864003.0453389
1998	4735727.60672999
1999	3427332.82054065
2000	19470929.4339858
2001	25092367.2617763
2002	19725999.238009
2003	15701279.2262284
2004	19434624.949157
2005	10190180.1715719
2006	25593977.9018769
2007	17360812.2391958
2008	37957818.4900893
2009	15699071.6858772
2010	26828708.1003103
2011	24033108.6901638
2012	23454220.7473466
2013	19289213.4302838
2014	13568436.8991933
2015	6006645.26228381
2016	115239813.975898
2017	184337222.687545
2018	285601292.958592
2019	154703306.614476
2020	58730457.5693715
2021	239956212.210437