Year	constant 2015 US$
1962	1304.1342859328859
1963	1340.9531629564874
1964	1347.8071523588783
1965	1340.9890060482865
1966	1286.2595452389796
1967	1375.5524738692861
1968	1390.66678886015
1969	1404.4845306542788
1970	1449.4756846437458
1971	1501.800213755539
1972	1533.5915325041574
1973	1534.0005582301017
1974	1660.550343488502
1975	1774.562018449226
1976	1807.634945232257
1977	1989.3981638494079
1978	2059.9291329697426
1979	2034.4564331042347
1980	2278.48877629416
1981	2424.348859797695
1982	2496.052662782637
1983	2406.561343612336
1984	2446.2012076102533
1985	2435.658216091072
1986	2419.0002746535033
1987	2515.3898733283663
1988	2507.7060334538505
1989	2419.6916461268024
1990	2621.411114669944
1991	2590.8091271621606
1992	2607.701137662502
1993	2629.3915907692935
1994	2716.600056895802
1995	2740.7064724702122
1996	2691.3847405057795
1997	2709.6731973863975
1998	2638.9153964887714
1999	2548.789531296334
2000	2463.124394371319
2001	2554.9768572947887
2002	2448.2747375280333
2003	2606.6796380686264
2004	2697.5731710989216
2005	2692.1786426855947
2006	2770.5860501839625
2007	2880.060792333373
2008	3020.024314947349
2009	3017.7898522891032
2010	3258.9787186999015
2011	3372.6644589400034
2012	3437.596650642043
2013	3547.8712577065294
2014	3716.2363206372424
2015	3737.457896030887
2016	3819.420045790654
2017	3945.8776915866792
2018	4061.181333024093
2019	4079.9793684734473
2020	3881.59285267606
2021	4065.61853720084
2022	4111.257677538964
2023	4172.298471117403