Year	current US$
1960	450.10602926585386
1961	468.456801290015
1962	493.41115925265586
1963	521.3692075494745
1964	560.587724932527
1965	597.9850768231245
1966	633.9948256548906
1967	661.3643187297995
1968	700.2490845265958
1969	756.8020732226394
1970	813.3802713207039
1971	880.0701015383878
1972	997.1497383292804
1973	1189.397450778175
1974	1341.101255736457
1975	1471.8883589981504
1976	1570.8577292020057
1977	1745.0191390382884
1978	2028.2392340128217
1979	2316.5111142397072
1980	2570.4847156842043
1981	2609.268009495125
1982	2530.6602613244595
1983	2555.452189984109
1984	2611.0061329460873
1985	2685.258382294315
1986	3110.074370615417
1987	3480.032257641465
1988	3822.7337884256244
1989	3906.471061749815
1990	4311.441715590757
1991	4425.996834417836
1992	4655.712755210985
1993	4671.705884368857
1994	4951.8032507301405
1995	5437.651776531013
1996	5481.652865604209
1997	5385.236714716285
1998	5300.641017632017
1999	5399.002866664325
2000	5507.314124854313
2001	5400.631116899237
2002	5535.212730601916
2003	6127.48578353944
2004	6817.495662579797
2005	7288.550579336253
2006	7799.327914309914
2007	8680.929197321067
2008	9420.426852634255
2009	8818.140274132364
2010	9543.067342413357
2011	10484.53513910906
2012	10586.670574492664
2013	10754.798415156667
2014	10918.55409563283
2015	10177.890514145382
2016	10224.065931263223
2017	10762.80458485446
2018	11315.083985152049
2019	11358.478657837637
2020	10941.662677785864
2021	12362.464208834288
2022	12730.157167109843
2023	13138.327545686421