Year	current US$
1960	147496234.02956977
1961	150990457.46951538
1962	160132881.63043484
1963	169879925.68708202
1964	181953580.70964077
1965	187708454.58378935
1966	200668832.40550736
1967	222763403.04035753
1968	244380671.26001415
1969	260039301.575015
1970	271704608.4031962
1971	301064394.14275295
1972	387655933.84728414
1973	432501842.4065918
1974	416693116.2298855
1975	680780306.7384185
1976	718140318.6385545
1977	712310482.5512091
1978	791029282.8203088
1979	902118376.3510214
1980	1097597919.4958074
1981	1393655374.8895607
1982	1156094859.8260546
1983	1161478476.6596203
1984	1175860308.3080096
1985	1489550764.5040395
1986	1560490288.378104
1987	1772905753.8097477
1988	1796216884.5468237
1989	1724720073.5050468
1990	1437411436.3991864
1991	1795329720.194836
1992	1588540173.5583038
1993	1583947811.4797082
1994	1083135993.5039165
1995	1318762207.2156951
1996	1491457288.1610591
1997	1447753472.3202848
1998	1358121144.7325504
1999	1223871655.245303
2000	1132117645.4485247
2001	1338213307.1519656
2002	1459199226.7144706
2003	1489305603.850016
2004	2351956834.966153
2005	2899715030.2194448
2006	3421773194.988282
2007	4440723501.222285
2008	5152876207.919452
2009	5085036028.666724
2010	5235481085.671927
2011	6344559612.572748
2012	6628392888.543478
2013	7196005327.997577
2014	8079055574.339439
2015	7314681594.015544
2016	7308239064.760771
2017	6248263761.120335
2018	6889811557.420135
2019	7446476774.207103
2020	7355669610.656462
2021	8583505321.352846
2022	7838576286.4409
2023	8764805693.897394