Year	current US$
1970	1259639992.0564148
1971	1282559996.511787
1972	1403440010.1043286
1973	1363499981.8652873
1974	1991620005.9354315
1975	1969769988.4623303
1976	1785529992.4463046
1977	2572950022.801758
1978	2822719962.5298386
1979	3046390002.98083
1980	4015789984.4329786
1981	4650939958.18496
1982	4063769998.9974504
1983	3771630001.3661375
1984	3884469947.2785
1985	4500819984.376431
1986	4614880036.950116
1987	5396290083.050728
1988	5849999941.349033
1989	6238660048.007968
1990	8070979962.110519
1991	8278670045.986771
1992	8584729992.866522
1993	8551649869.203569
1994	9411980090.379715
1995	9944729911.08895
1996	8842129921.957853
1997	7989030045.986177
1998	9604459918.975836
1999	10549420065.164572
2000	8871410050.868988
2001	8597430145.740513
2002	9580509927.74964
2003	9038459938.76458
2004	10182069934.368149
2005	10314519943.714153
2006	11535379981.040964
2007	12063149797.439583
2008	13237310021.400452
2009	13566290091.514603
2010	11753110192.775734
2011	13484350044.25049
2012	14763570176.12458
2013	13465340082.168577
2014	14801220124.244688
2015	12562679975.390446
2016	12084700069.427494
2017	12768990048.408512
2018	9824989892.005938
2019	8129200014.352802
2020	13236670042.514805
2021	12128440089.22577