Year current US$ 1960 1451.2850779893963 1961 1570.638043747188 1962 1678.2672565399153 1963 1787.3185339490897 1964 1950.6932422293073 1965 2178.7750811180795 1966 2332.510598660979 1967 2530.66057799458 1968 2679.713004381892 1969 2894.239982366806 1970 3306.2194760776933 1971 3736.3487374999136 1972 4413.575691685282 1973 5689.588806696703 1974 6811.527336532321 1975 8204.451511529785 1976 8927.201627344768 1977 10266.120671869805 1978 11462.59459160534 1979 13046.537221065335 1980 15772.24090738139 1981 15512.506704357456 1982 15224.893910098159 1983 14927.517476633935 1984 14989.485766590566 1985 15753.552765212879 1986 18883.233352387266 1987 22505.862262368388 1988 24207.281468963014 1989 24281.130405139564 1990 28242.98140282198 1991 28596.93300364437 1992 30523.985055897447 1993 27963.69790957439 1994 29315.809233773216 1995 34875.70433475359 1996 37321.97419934726 1997 36629.03090366214 1998 34803.463405873816 1999 36393.292747108775 2000 38178.23687770755 2001 38601.897639231 2002 43170.55717449903 2003 50250.3298214345 2004 57768.69809584616 2005 67047.17045582643 2006 74434.49968356708 2007 85502.26770877308 2008 97503.54078037835 2009 80347.57006651835 2010 88163.2085931423 2011 101221.81347664402 2012 102175.91929837366 2013 103553.84013441675 2014 97666.69518387492 2015 74809.96580498976 2016 70867.36099707492 2017 76131.83840327642 2018 82792.84271133045 2019 76430.58894733385 2020 68340.01810337017 2021 93072.89251195709 2022 108798.45116590087 2023 87961.78061350716