Year	current US$
1960	169803921.56862745
1961	190098039.21568626
1962	212254901.96078432
1963	237745098.03921568
1964	266666666.66666666
1965	300392156.8627451
1966	340000000
1967	390196078.4313725
1968	444901960.78431374
1969	528137254.9019608
1970	538423153.6926148
1971	573400000
1972	590900000
1973	670900000
1974	632400000
1975	596200000
1976	642100000
1977	713000000
1978	832400000
1979	1139800100
1980	1335300000
1981	1426500000
1982	1578300000
1983	1732800000
1984	2041100000
1985	2320699900
1986	2472500000
1987	2713999900
1988	2817900000
1989	3062000000
1990	3166000000
1991	3111160000
1992	3109000000
1993	3092000000
1994	3259000000
1995	3429000000
1996	3609000000
1997	6332360000
1998	6833220000
1999	7683870000
2000	8076470000
2001	8317830000
2002	8881160000
2003	8870090000
2004	9055290000
2005	9836200000
2006	10167250000
2007	10618340000
2008	10526000000
2009	9981960000
2010	10095760000
2011	10070450000
2012	10720500000
2013	10395800000
2014	10974100000
2015	11671900000
2016	11745100000
2017	12236700000
2018	12615800000
2019	13016200000
2020	9958200000
2021	11368900000
2022	13136400000
2023	14338500000