Year	constant 2015 US$
1968	1725269572.5467947
1969	1715484286.4557905
1970	1947939274.0006406
1971	1974643915.287516
1972	1969534365.311247
1973	1914937972.0535512
1974	2166992720.691658
1975	1983439107.6848087
1976	2063589916.2673512
1977	2084881688.1420257
1978	2126856845.200501
1979	2234299321.8433704
1980	2326847798.342267
1981	2362423446.748426
1982	2315252426.1393023
1983	2377439507.702983
1984	2335302976.7574224
1985	2369452429.790815
1986	2482724662.9957232
1987	2532649252.5999827
1988	2598550144.2057543
1989	2743680799.633611
1990	2701843988.326472
1991	2779221556.682026
1992	2837120309.211897
1993	2987145715.943887
1994	2889970375.411558
1995	3174638679.345365
1996	3497720137.922036
1997	3347752956.6158667
1998	3456164474.128861
1999	3589853941.596087
2000	3427685229.765648
2001	3323728685.099668
2002	3520189340.9189057
2003	3757574344.2493544
2004	3932862235.220283
2005	4250791852.8528514
2006	4834329540.867337
2007	4762613299.969702
2008	4792400748.826793
2009	4870369279.294241
2010	4877411638.532831
2011	5006672224.626908
2012	5202731770.465953
2013	5428584575.978829
2014	5619791922.965317
2015	5986395817.554054
2016	6117056307.2345915
2017	6529442418.401808
2018	6902989440.322432
2019	7058101414.802927
2020	7019186712.5905905
2021	7047412579.148143
2022	7591814425.221641
2023	7897652969.155367