Year	constant 2015 US$
1960	1027.6547806041683
1961	1066.8038522379463
1962	1077.1160303260237
1963	1142.0276294736036
1964	1217.9469941087902
1965	1274.2724441704981
1966	1391.6724626359696
1967	1482.9952534271524
1968	1639.7501544222484
1969	1836.478707395963
1970	1977.429412863583
1971	2143.289130207713
1972	2255.2067361697823
1973	2545.7775427469946
1974	2740.585299398114
1975	2906.150499335658
1976	3238.269872117796
1977	3581.4682392204663
1978	3913.833173873911
1979	4189.181487710448
1980	4056.5260070303966
1981	4283.119601471493
1982	4569.087174915634
1983	5104.448097429422
1984	5573.842719163159
1985	5951.879089244075
1986	6560.479672017616
1987	7322.719868859934
1988	8120.63968724428
1989	8609.426113900932
1990	9367.092586867548
1991	10274.482745469413
1992	10798.561680692048
1993	11424.58513306118
1994	12358.518022962759
1995	13411.111917015754
1996	14332.136723198673
1997	15074.488342992378
1998	14198.386270754952
1999	15714.41194847463
2000	16995.55918646256
2001	17684.050377327745
2002	18940.38422339347
2003	19435.49341043026
2004	20364.759965677127
2005	21197.199088034748
2006	22196.207745926582
2007	23365.140206481203
2008	23887.0595538423
2009	23952.813219106883
2010	25455.61748436576
2011	26191.64426154209
2012	26680.275444870527
2013	27399.6159477521
2014	28100.0102759544
2015	28737.439170649883
2016	29467.124342556046
2017	30312.8888500809
2018	31059.266808792658
2019	31645.94983433067
2020	31378.15793406475
2021	32771.072424322905
2022	33690.37887930456
2023	34121.021175676644