Year	current US$
1960	207790296.88388124
1961	211786315.28547388
1962	207790296.88388124
1963	199798400.08064
1964	241755963.2976147
1965	257739896.90404126
1966	307299877.08004916
1967	336091752.7723427
1968	377999697.6002419
1969	418799664.960268
1970	443040177.2160709
1971	494115047.75444824
1972	512600005.211998
1973	600398936.1702127
1974	577720577.7205778
1975	737110737.1107372
1976	540210540.2105403
1977	397320397.3203973
1978	397874981.07210433
1979	466064286.83947784
1980	426176870.1373062
1981	604686149.2517205
1982	687316859.5839274
1983	805603149.1286951
1984	548822589.2030139
1985	510438138.8122603
1986	466735641.63054985
1987	678736289.2626799
1988	904336552.0317373
1989	1172205300.1736226
1990	1188665156.3712542
1991	1000447759.6541727
1992	1054576795.5993606
1993	1374268244.0462472
1994	1321256378.0504544
1995	1661453691.0226552
1996	1889435213.6412833
1997	2158371710.552796
1998	1985964432.2845418
1999	1889686321.0350645
2000	2112888704.8483565
2001	2379628774.0848436
2002	2656955430.093666
2003	2475213658.8718767
2004	2692950004.2485604
2005	3029364707.839337
2006	3390856678.961554
2007	3401006605.343536
2008	3338313298.1802254
2009	2552116114.2520113
2010	2671413940.7032967
2011	3096405601.9024405
2012	2951522077.761931
2013	3032553983.2348857
2014	3123680612.4102926
2015	3029611269.2070103
2016	2996753460.460887
2017	3336736828.237935
2018	3667086754.3506975
2019	3841983846.074547