Year	constant 2015 US$
1960	1834.562154089804
1961	1854.906573067332
1962	1867.3307700897851
1963	1984.8793507712214
1964	2012.7717291515971
1965	2051.895966377597
1966	2098.524995488465
1967	2121.7397563284294
1968	2231.222689074376
1969	2273.7123748662
1970	2345.3231510690207
1971	2414.883072174412
1972	2530.390013890068
1973	2651.0317068174945
1974	2766.37614482818
1975	2748.0772506785434
1976	2910.552797288128
1977	3084.846641803933
1978	3172.4672913990553
1979	3255.1716731447473
1980	3273.560524289808
1981	3195.9496293498887
1982	2991.8334512540837
1983	2838.711732381717
1984	2748.3161364631046
1985	2669.942159494834
1986	2564.4661649393347
1987	2598.599823763661
1988	2633.1946461186894
1989	2665.866192057353
1990	2663.1758986527952
1991	2728.2363881867864
1992	2779.32756174893
1993	2824.5028093083797
1994	2867.066738778114
1995	2933.154527861515
1996	2936.661540002024
1997	2996.7191780948556
1998	3085.5753782872016
1999	3123.7158576275265
2000	3160.1199864567147
2001	3178.7211665558784
2002	3189.8894748187495
2003	3204.175227099904
2004	3226.984208540952
2005	3262.340861023877
2006	3352.1908000930794
2007	3487.228563027973
2008	3564.500826918203
2009	3502.0180402655747
2010	3516.6183147306597
2011	3587.1948607248146
2012	3655.7350535044457
2013	3714.8741294446027
2014	3801.937929715373
2015	3899.147607641628
2016	3946.4748138824407
2017	4004.9771527777975
2018	4078.263849656529
2019	4185.476949267407
2020	4047.793121071195
2021	4279.755892507157
2022	4412.114204695593
2023	4516.390043085696