Year	current US$
1974	166549999.9932544
1975	100700000
1976	154249950
1977	256099950
1978	430529590.9999995
1979	474624748.2500005
1980	328990783.0999999
1981	229207675.3499999
1982	116520602.5999999
1983	117730510.04999924
1984	215506066.8000002
1985	358728635.5
1986	324721885
1987	572663223.5
1988	764951452.360515
1989	479263812.06896555
1990	676181713.5214008
1991	642438262.4560348
1992	623746683.2790703
1993	988057738.5245776
1994	1103140174.5790126
1995	1172322221.063608
1996	1065751604.7297298
1997	1349662228.136882
1998	1522362725.2584934
1999	1712088257.8397212
2000	1453309380.6058369
2001	1437534612.867235
2002	1469006444.2189755
2003	1548060067.2902215
2004	1790194351.8821654
2005	2330423493.846646
2006	2738173466.461269
2007	2965069184.5484056
2008	2978298182.022499
2009	2751088547.6606774
2010	2779364433.741958
2011	3311592866.520675
2012	2966240230.5820713
2013	2348986472.159134
2014	2906501520.956881
2015	4127843746.598183
2016	4435993517.085026
2017	5356708973.690398
2018	4712586357.680463
2019	4889118117.042237
2020	5123401113.87195
2021	5143098907.191317
2022	5986643466.170551
2023	6529747646.486729