Year	constant 2015 US$
1960	39907.2639481954
1961	42297.9647391899
1962	43214.51551487457
1963	44364.46605205943
1964	45930.29298148217
1965	46358.4508627756
1966	47005.68736548429
1967	47845.62672761548
1968	48942.13651340895
1969	51120.43466051833
1970	53989.160671197904
1971	55895.352541115404
1972	57246.12951435251
1973	58558.19247173049
1974	59091.084143946275
1975	54811.34551769034
1976	54351.75793494789
1977	55863.55351863355
1978	56087.045941721015
1979	57369.143193337506
1980	59771.44921562521
1981	60397.27306357926
1982	59259.16076700286
1983	59382.70141686992
1984	60949.932305304654
1985	62910.658137525184
1986	63747.335762483344
1987	64352.555339868544
1988	65975.10651222224
1989	68278.0620563222
1990	70063.85169048821
1991	68559.9381759437
1992	67778.54748640567
1993	67079.4643889041
1994	67391.84433428971
1995	67264.91129419139
1996	67284.1091295952
1997	68640.07445090452
1998	70510.02546736262
1999	71341.34285285225
2000	73749.9388039148
2001	74439.46360095697
2002	73824.38488238944
2003	73254.95291492804
2004	74718.68361144743
2005	76282.98396478489
2006	78893.80773577618
2007	81254.17005046373
2008	82481.06803613402
2009	79585.52159420228
2010	81315.42286456675
2011	81874.33618607961
2012	81964.8864216996
2013	82479.92153564018
2014	83394.37114237239
2015	83806.44760038373
2016	84611.09984796056
2017	84967.58854846985
2018	86756.60212945126
2019	87123.66043632264
2020	84637.01323131793
2021	88520.32200121794
2022	90057.03594222333
2023	89942.537545472