Year	constant 2021 US$
1970	5945930042.326449
1971	6278669996.231795
1972	6284509939.968591
1973	6650599950.350825
1974	9221030011.691153
1975	10817460053.801535
1976	9734760037.183764
1977	10856399959.087376
1978	12437449955.262249
1979	14086480067.253115
1980	14422169980.16835
1981	15699989998.459824
1982	16130439915.001404
1983	15437449838.638313
1984	16144670070.767414
1985	17643680072.78443
1986	17836490100.02613
1987	17863559995.65125
1988	18536559935.83613
1989	20233659912.10937
1990	21102860118.06132
1991	20825730148.67306
1992	20285420131.519436
1993	19285979908.168316
1994	19953220010.846863
1995	17662230109.71025
1996	15306280041.806402
1997	15259990033.56696
1998	14723979978.322992
1999	13642449886.322027
2000	14781600099.563608
2001	16976019962.310791
2002	23187340000.15259
2003	29530320077.896133
2004	31173100257.873554
2005	58507319513.320946
2006	50563649906.15846
2007	42580309581.75661
2008	41921380243.301414
2009	40201250070.57191
2010	40373279960.63235
2011	40216780303.955086
2012	39984760342.59798
2013	39401369827.27052
2014	37376419769.585144
2015	39335920123.1003
2016	38854240160.46525
2017	43660810208.32064
2018	41521830215.454124
2019	44790060466.76641
2020	54058549952.507065
2021	48190290704.72719