Year	current US$
1960	15334412855.379892
1961	15028005889.912724
1962	15530312390.678574
1963	17299435886.3759
1964	19372957121.53733
1965	21821199006.27009
1966	24106693584.754707
1967	25040983676.17919
1968	28530004630.498787
1969	34189994281.128395
1970	39545586192.29389
1971	47089225220.79543
1972	58316780125.91373
1973	83124693585.73756
1974	117860192726.69768
1975	118007870837.92284
1976	144577875502.43326
1977	170897731529.5623
1978	205278602280.98172
1979	243496090085.25073
1980	309807580477.35376
1981	343151450646.33246
1982	329122035529.78156
1983	343913744878.9916
1984	396842174356.0647
1985	401425943613.3406
1986	455280730648.737
1987	544659229234.955
1988	652256760058.9529
1989	705844033054.8854
1990	764872364497.7139
1991	857699482608.4644
1992	949016029243.7941
1993	1030841985423.9478
1994	1189479000561.5508
1995	1400580597927.2205
1996	1413926698914.6304
1997	1493235299027.7358
1998	1398306580720.1646
1999	1493303299542.283
2000	1771084401459.0923
2001	1609337177548.5872
2002	1736807142089.5847
2003	2054219543888.9087
2004	2547824356596.7485
2005	2927862752244.7676
2006	3416824547901.653
2007	3950757508710.055
2008	4483283464351.39
2009	3683936528840.188
2010	4798371621477.005
2011	5609762601218.597
2012	5761853159753.97
2013	5911983711091.437
2014	6052694227834.893
2015	5632022212000
2016	5426277204255.367
2017	6011228226274.033
2018	6500482244690.482
2019	6371018239817.211
2020	6336918238533.622
2021	7974464300173.961
2022	8513890320478.9795
2023	7995880300980.1