Year	current US$
1967	46.785194521810524
1968	57.54698178364908
1969	56.07507436660097
1970	58.46546333093169
1971	63.256457459747764
1972	76.66695555011378
1973	87.32165168709852
1974	82.0101919886771
1975	124.22225483165673
1976	137.9665954009065
1977	151.37529718952175
1978	172.87053454264537
1979	221.0315176162973
1980	238.68048196417695
1981	204.30110305540452
1982	173.29700420283513
1983	165.02728476992286
1984	153.5388423072697
1985	170.0360760365763
1986	222.22615600834212
1987	246.70153672065678
1988	251.70259906719042
1989	248.665554146491
1990	299.8216158006048
1991	298.56868850191825
1992	304.02787048207796
1993	296.45801509559857
1994	214.36264552754568
1995	272.7950322206367
1996	274.422408697045
1997	260.3559664369341
1998	274.97439714386263
1999	315.1714679667362
2000	263.4983842448285
2001	299.4121753162544
2002	326.96665905493546
2003	381.9485462792268
2004	427.7173199746127
2005	473.995046803835
2006	506.91183869957223
2007	579.257140881674
2008	676.1270011440046
2009	680.6499585875573
2010	688.3278658585583
2011	810.1825560361287
2012	753.3921375019053
2013	778.7970527988163
2014	818.4303413922155
2015	723.5042049476626
2016	750.0518091022951
2017	795.6828015537648
2018	856.3565965506028
2019	840.1757463662992
2020	822.9061368321317
2021	881.5100887335853
2022	831.2234666451149
2023	897.4486702905715