Year	current US$
1973	190.8628392203805
1974	234.64284966132138
1975	277.1357062373944
1976	286.1819427166543
1977	285.1922438462485
1978	306.6594687731751
1979	349.11489472953264
1980	402.51233107755326
1981	424.40228456756915
1982	405.30898877459566
1983	376.10763206370785
1984	368.36472920310007
1985	382.1924136026824
1986	370.29687629909506
1987	387.47119043913096
1988	405.4330576651493
1989	392.34339303735874
1990	396.9855009942107
1991	414.7497254809764
1992	389.8780034595397
1993	362.01255541439815
1994	334.53651943989394
1995	338.62895197928805
1996	335.9622517930096
1997	346.32528380721624
1998	346.0604905751391
1999	348.00965700265755
2000	356.5801355140674
2001	358.64908890449135
2002	364.1756741280375
2003	391.30035795342945
2004	444.23666092281763
2005	498.8154724836634
2006	545.1175023382013
2007	612.0830927736467
2008	709.8710116207392
2009	778.4820619071461
2010	840.8325492582823
2011	893.8066034808448
2012	936.9827211726075
2013	980.6943425133458
2014	1030.1564998125175
2015	1035.5983824446391
2016	1043.6211004742775
2017	1076.5719253429263
2018	1165.7798175854098
2019	1219.5666507110452
2020	1199.7686235509336
2021	1265.4016389610001
2022	1346.5516919872841
2023	1384.1162541531185