Year current US$ 1970 206.80278974582382 1971 214.6421909535425 1972 219.78600056717124 1973 239.23677777655098 1974 272.5655422040294 1975 246.46154634566165 1976 242.9460224277325 1977 260.06326933815825 1978 241.82215028023856 1979 262.09324207513686 1980 309.8543814818649 1981 324.68704126656417 1982 319.8530021638278 1983 343.62489096997433 1984 341.2067975340494 1985 337.0059425273031 1986 383.0867122143103 1987 472.2383038099295 1988 514.6915260375163 1989 486.5752425309429 1990 515.2997215595353 1991 423.269426319643 1992 440.03328392740707 1993 433.86560281143085 1994 496.7860723027531 1995 550.6562278513285 1996 564.4869442637082 1997 644.0878035852122 1998 652.3610292211183 1999 699.3313359389133 2000 784.6184027085442 2001 822.4175456129914 2002 903.5571776474661 2003 1027.2733910067568 2004 1131.321034334991 2005 1297.092065587437 2006 1400.469177641444 2007 1842.3447347104286 2008 1910.1742179978103 2009 1908.249647793224 2010 2371.972090327961 2011 2717.4499479090396 2012 2689.7928657548673 2013 2624.7651936313923 2014 2793.9313033372555 2015 2899.2282935439384 2016 3097.9612336050127 2017 3427.173845400982 2018 3389.777302756154 2019 3564.598771499856 2020 3181.3397467587138 2021 3561.2252866050467 2022 3704.018394953261