Year	constant 2015 US$
1977	704.59176998638
1978	696.1172899603171
1979	723.1783331303484
1980	749.2738849135075
1981	801.1109268694177
1982	794.4191872329834
1983	733.0153905314495
1984	756.2055329497973
1985	796.5794564249932
1986	791.4077343779164
1987	757.6765864093562
1988	762.4301397404503
1989	711.5323910327687
1990	756.1807484186768
1991	767.5253019389338
1992	750.9608067660417
1993	774.4253214455973
1994	758.2128404792343
1995	788.7342567139054
1996	802.3124237238304
1997	829.2083679305058
1998	842.6328965968719
1999	862.7068186917918
2000	885.7447160636752
2001	904.8902738404066
2002	916.3957128759814
2003	919.4078178221145
2004	932.4782167086909
2005	921.8421639246699
2006	927.8824607042224
2007	954.0600695879084
2008	976.2078854300779
2009	967.746278840803
2010	957.5347918560641
2011	961.3701292179551
2012	974.2798164379278
2013	1014.9195160028764
2014	1049.2959319733752
2015	1033.19004225415
2016	1035.968867323471
2017	1060.5118353947503
2018	1099.9551681380035
2019	1142.1108615052426
2020	1152.5451196282208
2021	1207.8489213781522
2022	1244.9572429368538
2023	1292.212453753923