Year current US$ 1964 419999.8320000672 1965 419999.8320000672 1966 1119999.5520001792 1967 2099999.160000336 1968 2379999.048000381 1969 2519998.9920004033 1970 2939998.8240004703 1971 3355624.936208172 1972 3642394.8746300694 1973 5619928.554856988 1974 7064256.773959972 1975 7572602.324788913 1976 7130001.782500445 1977 8280002.070000517 1978 11615002.903750725 1979 22514468.132105656 1980 33136714.627250478 1981 35958404.55840456 1982 18447416.50519057 1983 27799569.158962388 1984 27175642.26921453 1985 16452869.978799062 1986 25229843.60831708 1987 31527435.95020316 1988 45025265.36551207 1989 47536238.73622257 1990 56801687.92353171 1991 60544161.024729155 1992 72676571.7138836 1993 79516130.71044163 1994 77829209.09609614 1995 89684443.56832 1996 83993786.03597893 1997 101815075.73196134 1998 101415701.50882262 1999 101494888.93006349 2000 120857087.52435939 2001 169381491.6774111 2002 190513945.5486409 2003 262387436.78078413 2004 348010139.94674593 2005 336221232.8095044 2006 392853939.32761914 2007 374100405.01805085 2008 375087780.5864822 2009 304764934.3130264 2010 292411336.3753108 2011 329716814.2811884 2012 283734352.1675597 2013 258951933.83907473 2014 299043367.8170579 2015 357092071.42824113 2016 352328501.41312367 2017 351471535.78772306 2018 425137355.30937684 2019 411671111.3258211 2020 335741220.4369557 2021 398614815.2087758 2022 352061832.79269826 2023 286929514.25374544