Year	constant 2015 US$
1960	238.21705203035026
1961	175.02368145805698
1962	163.90704381650437
1963	176.40045577572295
1964	203.6878341984662
1965	232.60720682811052
1966	250.3049026898947
1967	229.8762741010028
1968	214.7700659756091
1969	244.3639643224024
1970	283.58535632415425
1971	295.38017097480054
1972	299.1908881976923
1973	315.1296634829874
1974	315.81666400891055
1975	337.3441190199898
1976	326.94946051576574
1977	346.939156011528
1978	381.09932947961875
1979	404.59663253381535
1980	430.85540978417436
1981	447.11978643739
1982	480.3113224127992
1983	524.4093631881573
1984	596.2011090562667
1985	667.1285419132151
1986	716.1053399857393
1987	786.8648815805917
1988	861.193486641788
1989	883.7641551502604
1990	905.0324571822563
1991	975.4629155540453
1992	1100.6461158826132
1993	1239.1293732408997
1994	1384.9301573228288
1995	1520.029469417187
1996	1653.4337889075944
1997	1787.766977029054
1998	1909.622328443991
1999	2038.2064740575024
2000	2193.896866422153
2001	2359.5723851352277
2002	2557.891612026267
2003	2797.176659122828
2004	3061.8331726287447
2005	3390.7161594504355
2006	3800.765795925909
2007	4319.031397512473
2008	4711.643449212628
2009	5128.904127743809
2010	5647.068727139538
2011	6152.69687271855
2012	6591.662494056444
2013	7056.423091523488
2014	7532.78530130172
2015	8016.445594899985
2016	8516.528742355724
2017	9053.228724619363
2018	9619.209475106767
2019	10155.510883054223
2020	10358.169997179182
2021	11223.255347696802
2022	11560.242122133448
2023	12174.004107564064