Year	current US$
1970	2146147746066.9626
1971	2373235228242.29
1972	2752798526769.265
1973	3326293958949.795
1974	3672354469843.3022
1975	4091873943944.2725
1976	4455747342231.773
1977	5032992023899.933
1978	6052505717811.266
1979	6850539573571.736
1980	7567489577444.719
1981	7694374784286.497
1982	7682648506114.165
1983	7898953493120.076
1984	8294986978926.922
1985	8706052225093.3
1986	10604644411263.508
1987	12290080814589.158
1988	13912556982165.34
1989	14435721524901.732
1990	16108313264367.473
1991	16982795265885.213
1992	18224857875929.008
1993	18228868006219.242
1994	19621697684436.027
1995	21758461816268.65
1996	22040425940423.13
1997	21761902513356.71
1998	21906908733398.176
1999	22881894313795.426
2000	23347855918954.645
2001	23208499502229.42
2002	24168689841209.754
2003	27091568833248.812
2004	30347288029383.605
2005	32163351836803.26
2006	34271946827965.926
2007	37453344516589.58
2008	39479058368280.21
2009	36684951843609.055
2010	39036060026321.27
2011	42470977796915.336
2012	42814973488915.46
2013	43372123656668.18
2014	44233591374570.02
2015	41371993930272.62
2016	42046146697450.91
2017	44232296616726.766
2018	46875786147618.695
2019	47237106171554.18
2020	45547161211446.22
2021	50244163700135.09