Year current US$ 1960 0 1961 0 1962 0 1963 0 1964 0 1965 0 1966 0 1967 0 1968 0 1969 0 1970 0 1971 0 1972 0 1973 0 1974 0 1975 0 1976 0 1977 0 1978 0 1979 0 1980 0 1981 0 1982 0 1983 0 1984 0 1985 0 1986 0 1987 580000.000074506 1988 990000.0039488081 1989 3519999.94181097 1990 9999999.76530671 1991 13340000.0017136 1992 18000000.072643198 1993 33399999.4266778 1994 32479999.992996495 1995 28190000.3571063 1996 38260000.1618266 1997 50030000.990256704 1998 67949999.1871417 1999 81569999.39493841 2000 85380000.7104874 2001 90450001.9233674 2002 109689999.109134 2003 103579999.60705599 2004 141019999.770448 2005 183980000.17553598 2006 175250000.43213397 2007 267539995.618165 2008 304090000.258759 2009 315329995.540902 2010 536580002.766103 2011 628759999.923408 2012 708250011.220574 2013 736589997.563511 2014 798819992.261007 2015 867520002.000034 2016 817560000.728816 2017 886019998.524338 2018 960799996.1543831 2019 1148929989.82221 2020 1015820004.42594 2021 1232299997.48245 2022 1190190002.2104383