Year	current US$
1960	17120000
1961	18340000
1962	18550000
1963	19370000
1964	19090000
1965	19950000
1966	19280000
1967	13280000
1968	16340000
1969	33050000
1970	46190000
1971	51697737.3737341
1972	70118316.0638601
1973	66825994.3443947
1974	131073692.643376
1975	165977215.01422
1976	89513781.7726107
1977	66318133.2331011
1978	45820529.1984035
1979	29177225.9630057
1980	90660000
1981	35059948.3279326
1982	37956313.7479028
1983	17884695.5976597
1984	23578020.9569767
1985	29944920.913884
1986	136027134.417086
1987	343470003.26292
1988	441979445.304195
1989	517830245.223014
1990	737597596.136063
1991	893234274.986053
1992	820067623.028587
1993	757027853.773273
1994	747574042.974994
1995	863310604.047996
1996	896105091.684018
1997	693250742.034023
1998	559006137.226051
1999	730978607.284471
2000	897435313.179955
2001	835621197.51268
2002	1227371781.41042
2003	1577284274.66079
2004	1605920912.54706
2005	1339904337.82123
2006	1269634204.14132
2007	1780302289.90601
2008	1742653924.22182
2009	2178769753.10442
2010	2441835607.0817
2011	2582676512.87377
2012	2836687539.14535
2013	3340205403.76468
2014	3614701310.24131
2015	3956976708.3633
2016	4504179661.12085
2017	5465932736.63058
2018	5840628543.70215
2019	6753393625.78251
2020	6535003556.38291
2021	7834980059.81864
2022	7068773582.92421
2023	6424580180.49611