Year	current US$
1967	157.85055166417507
1968	171.2736411377167
1969	169.87281039697956
1971	282.3860615882973
1972	223.26591771668038
1973	295.86389197679756
1974	439.95385122719665
1975	377.15030871168966
1976	407.1933551608424
1977	441.5891536405765
1978	508.84962949479774
1979	669.9994529445261
1980	782.5295137845244
1981	801.1948237065218
1982	770.8372376544271
1983	699.8412752259034
1984	677.7217756428245
1985	597.2223195458703
1986	515.2046666736227
1987	524.3734442037947
1988	578.4198113921244
1989	549.6007460543475
1990	662.8528360024568
1991	681.3568217590749
1992	782.2683324212439
1993	849.3596502791396
1994	1105.1618092278452
1995	1251.2179235086148
1996	1322.5263623604244
1997	1326.1654853402772
1998	1121.1207787062594
1999	1164.100084606168
2000	976.4282689524864
2001	929.8664902643592
2002	768.4948506638505
2003	905.5821641234246
2004	991.9885510390903
2005	1145.8665541089674
2006	1250.9538420042004
2007	1377.862006031356
2008	1504.5274947046576
2009	1526.1599077360804
2010	1661.9978846893061
2011	1921.3563522045724
2012	2087.5178873149907
2013	2208.085283511202
2014	2235.7337028278034
2015	2134.8054182615474
2016	2196.2838905550325
2017	2283.5790512737926
2018	2450.4828877800965
2019	2398.773050079626
2020	2222.462118531731
2021	2151.29301659728
2022	2162.6661301833997
2023	2203.1791258996955