Year current US$ 1964 1399999.97615814 1965 180000.00715255702 1967 990000.009536743 1968 330000.013113022 1969 -250000 1970 1429999.94754791 1971 1029999.97138977 1972 1539999.96185303 1973 3109999.89509583 1974 5260000.228881841 1975 7659999.84741211 1976 10199999.8092651 1977 9920000.07629395 1978 7500000 1979 8380000.11444092 1980 10770000.4577637 1981 12710000.038146999 1982 14260000.2288818 1983 9399999.61853027 1984 10039999.961853001 1985 8460000.03814697 1986 11380000.1144409 1987 13369999.8855591 1988 12039999.961853001 1989 13409999.8474121 1990 11289999.961853001 1991 11840000.1525879 1992 16579999.923706101 1993 10239999.7711182 1994 11609999.6566772 1995 10880000.1144409 1996 8520000.45776367 1997 8859999.65667725 1998 9680000.30517578 1999 7239999.771118159 2000 9020000.45776367 2001 15470000.2670288 2002 15239999.7711182 2003 12279999.7329712 2004 25959999.084472697 2005 29889999.3896484 2006 33520000.4577637 2007 28000000 2008 32569999.694824196 2009 32470001.220703095 2010 26309999.4659424 2011 25069999.6948242 2012 16329999.923706101 2013 16360000.610351602 2014 4929999.82833862 2015 3329999.92370605 2016 4639999.8664856 2017 3579999.92370605 2018 9770000.45776367 2019 5269999.98092651 2020 1450000.04768372 2021 4010000.2288818406 2022 2019999.9809265102