Year constant 2015 US$ 1960 441.6019070672715 1961 454.9374087841059 1962 465.57689037005576 1963 449.7220701498122 1964 484.2109245748984 1965 477.47544903495805 1966 475.387679290907 1967 452.6555082472685 1968 480.9640515029447 1969 473.00509906942835 1970 487.1981593210804 1971 454.883052541971 1972 385.8424550863976 1973 388.5982522467955 1974 415.3464996547964 1975 389.02021127142564 1976 402.0044544115586 1977 403.46544987021576 1978 421.91004024624533 1979 431.90851507349856 1980 424.9578713797678 1981 443.9300084638889 1982 441.1143265661421 1983 445.7012310065602 1984 454.6807796644086 1985 458.0026338330314 1986 465.88875797650843 1987 472.7905847783009 1988 473.84734612901576 1989 477.04572440025527 1990 493.26704217196783 1991 500.6683697064238 1992 518.2905372462877 1993 532.438345837954 1994 542.6436304788666 1995 559.8844252406343 1996 575.0362964726677 1997 590.208555271543 1998 609.2259594021372 1999 625.5819529409846 2000 646.2630725701492 2001 666.300049997793 2002 679.1042675629637 2003 698.9757721188547 2004 723.4800679990511 2005 759.1546401057192 2006 800.0604027984778 2007 847.5774423264188 2008 890.6066627025755 2009 927.3413893623696 2010 967.8985228075348 2011 1017.9826339355212 2012 1070.9685396209047 2013 1121.0761794215105 2014 1174.302401381374 2015 1236.4354555045988 2016 1308.188406411629 2017 1377.083561626552 2018 1460.8135164488392 2019 1558.507797497742 2020 1593.9030882546936 2021 1685.020934600656 2022 1785.3613167993653 2023 1869.1639329653894