Year	current US$
1977	1553939992.0255463
1978	2236078063.573192
1979	2830242608.7225327
1980	3282105471.026876
1981	2943961720.58471
1982	2748588442.7529945
1983	2592749797.050256
1984	2646086396.9181247
1985	2827805313.0122595
1986	2688486884.103563
1987	2848777233.3089113
1988	3109608744.4625854
1989	3938029738.3137007
1990	4887442089.619577
1991	4954646978.753446
1992	5337944932.620565
1993	5774126309.319426
1994	5293400214.950986
1995	5310306912.95365
1996	5895157301.940218
1997	6383978080.945128
1998	6380664630.865461
1999	7269771947.961071
2000	7221726388.998392
2001	7292719546.593144
2002	8520678607.4415655
2003	9779434877.786734
2004	11034496608.513657
2005	9925063836.621593
2006	11631978394.730232
2007	12427455131.007074
2008	13972497810.019083
2009	12701990026.545486
2010	15486620211.411388
2011	17441472580.43663
2012	17589125616.922497
2013	18707730144.198093
2014	18712584768.6826
2015	18547791523.5926
2016	18681489248.523434
2017	22472917276.711014
2018	24346091018.134098
2019	25279305094.915718
2020	16868209768.416288
2021	20324628008.698414
2022	28738239107.870518