Year	constant 2015 US$
1960	1521165551.7623754
1961	1550782139.5194993
1962	1580319660.6485884
1963	1532369475.7543938
1964	1666885047.7309725
1965	1699735309.1504607
1966	1994942032.2693172
1967	2028355877.5939224
1968	2179138450.0640225
1969	2230292584.395518
1970	2627560360.145853
1971	3053070204.662945
1972	2564361815.5341544
1973	2524777435.1714725
1974	3026667430.4981627
1975	2305911311.159613
1976	2244789388.607913
1977	2655693651.4149055
1978	3384687043.2647295
1979	2740548403.4894757
1980	3014227473.391469
1981	2380145621.290145
1982	1996306669.463562
1983	1629060921.9533513
1984	1920124288.529026
1985	1783383642.203244
1986	2083781922.7146075
1987	2360645147.963517
1988	2573746172.9352803
1989	2825136161.0898876
1990	2920581688.0923615
1991	2789655581.381766
1992	2724330969.8492923
1993	3645560274.1566615
1994	4258816571.127397
1995	5003750510.380411
1996	5094845018.902805
1997	5632513456.217432
1998	5896153799.723243
1999	5808941663.596187
2000	5920385071.515582
2001	7073057538.607073
2002	6274795559.875068
2003	6270930824.574193
2004	7041996523.245005
2005	8094308576.698182
2006	10143548397.713608
2007	10590436445.390768
2008	11940067947.64154
2009	12936792841.773916
2010	14272332318.505585
2011	16235774683.551397
2012	16305541671.14186
2013	16634443184.068314
2014	18528118561.523663
2015	17669406544.83525
2016	16360137328.945145
2017	18392317120.17883
2018	18656042313.29828
2019	19000147049.491943
2020	17209951064.702015
2021	21022719926.53442
2022	21959376618.430145
2023	20246549232.864285