Year current US$ 1960 118.40763479583993 1961 122.2433897249162 1962 126.5047230922786 1963 131.9582332653651 1964 140.48856155661997 1965 148.18749736138338 1966 155.71737393215102 1967 156.29564538316316 1968 162.28643023786884 1969 169.37938922750922 1970 158.70432150556633 1971 164.77185932984216 1972 178.91577926602062 1973 211.7740259013776 1974 240.11327485472313 1975 266.477749865184 1976 283.4625266979723 1977 314.28533012841956 1978 357.6265716939484 1979 393.23459853494006 1980 428.0356834540389 1981 427.5350030839789 1982 420.23506132664403 1983 414.67148315436464 1984 423.48786740550355 1985 438.79114890481833 1986 386.5935746523852 1987 402.0522176891666 1988 412.69602289070264 1989 415.145872207974 1990 468.2710972962358 1991 496.6188155655015 1992 363.21639446621805 1993 364.1475312634044 1994 301.98874535557843 1995 341.6410048289641 1996 361.97679719957034 1997 368.69127494657266 1998 370.8754707352555 1999 362.80519584450695 2000 381.75207467640837 2001 357.80437262337045 2002 377.02550298562653 2003 415.22249217606685 2004 465.1838684344388 2005 518.012209263837 2006 590.466757099069 2007 685.4545997558652 2008 792.1617002677968 2009 764.0568702959661 2010 806.813557896356 2011 869.2272510671444 2012 874.7117297712774 2013 955.1945963480496 2014 982.6315078380959 2015 917.7214596853552 2016 901.3248931128787 2017 940.7673998782954 2018 977.2792262071998 2019 985.5908764090766 2020 968.1333675370433 2021 1047.7340150169987 2022 1110.1304329994002 2023 1245.0196555427533