Year	current US$
1960	70.02754836472117
1961	68.1938366775398
1962	69.61267355211898
1963	71.53440103244337
1964	77.51528769413602
1965	82.64460451044229
1966	84.75830982628099
1967	83.27269331037675
1968	81.51712691564876
1969	85.24057344470158
1970	70.75695413530815
1971	76.11577906534943
1972	76.65155371340036
1973	94.48014010987477
1974	112.39086335544859
1975	132.96751330845964
1976	168.31528842806543
1977	177.87955919679584
1978	179.45473538900066
1979	195.1801731912464
1980	245.06452999959623
1981	256.83149378397997
1982	250.8130753541701
1983	270.7020095405952
1984	296.7680033046119
1985	321.73364060331704
1986	363.60231067856694
1987	314.54981900939856
1988	393.36989137179023
1989	403.3282523808029
1990	447.09629041557724
1991	491.584431170466
1992	313.238787697619
1993	255.68596630425085
1994	289.54617918996354
1995	368.84708576527044
1996	374.16933350738975
1997	421.8416417987217
1998	461.9714388620965
1999	506.00021170097614
2000	814.9979335325902
2001	743.9112627083739
2002	716.4826248841837
2003	575.5568301009143
2004	679.2800486946868
2005	771.5349960312254
2006	824.3580517541025
2007	979.5996410176867
2008	1089.5763456415095
2009	1191.8029254380458
2010	1204.8620652842292
2011	1306.8453187811172
2012	1356.172783933505
2013	1452.3135588781756
2014	1454.649160320251
2015	1405.7147763435376
2016	1313.1860945798107
2017	1389.3586246356135
2018	1489.5784149412523
2019	1345.4750547883975
2020	1283.1412278593907
2021	1823.7422244528468
2022	1748.2571353975104
2023	1693.0687432869345