Year	current US$
1960	521926698.37719506
1961	523120451.6989815
1962	551911349.9486034
1963	589255645.4794127
1964	670968347.9081297
1965	685277449.149857
1966	718187357.771505
1967	723925260.8681039
1968	792823532.1353059
1969	919534682.5016404
1970	1099260185.558693
1971	1150373916.632274
1972	1460639721.3820915
1973	1988041813.289174
1974	2460608947.804474
1975	2587295162.8825274
1976	2911346917.450366
1977	3284764209.341587
1978	4090814653.5160756
1979	4783285635.663181
1980	5310504897.227203
1981	4633382225.119513
1982	4623996998.057567
1983	4659143195.266272
1984	4515406311.086289
1985	4692131258.917046
1986	6684345313.346578
1987	8413480280.929228
1988	9341786066.922655
1989	9854732800.982801
1990	12743261709.31917
1991	13898135853.514471
1992	15508292346.298618
1993	15614277052.238806
1994	16720042199.18013
1995	20310578817.73399
1996	20323997394.13681
1997	18904269282.814613
1998	18886532562.79173
1999	20201236234.19232
2000	18782499824.508274
2001	19049517003.53703
2002	19950388654.458466
2003	24019997499.023872
2004	31641464154.21089
2005	34309510334.705044
2006	34360473818.53407
2007	43858974247.481316
2008	46059035709.81327
2009	34736149608.22263
2010	38203044611.66674
2011	42768242732.49036
2012	45915520597.73438
2013	46779637636.27464
2014	49979926556.90179
2015	38657980989.023415
2016	41225831605.5643
2017	47031112675.05891
2018	50751283867.92153
2019	47877349992.9411
2020	51783516552.21804
2021	58630447829.068825
2022	54993885553.50216
2023	58922083659.46669