Year current US$ 1960 0 1961 930000.007152557 1962 0 1963 -500000 1964 -500000 1965 309999.994933605 1966 679999.977350235 1967 719999.97831881 1968 2460000.04932284 1969 3309999.9669939303 1970 7190000.22858381 1971 3029999.9732524203 1972 230000.004172325 1973 5559999.90552664 1974 4419999.96639788 1975 11420000.2104044 1976 6669999.85277653 1977 5770000.11503696 1978 7020000.10386109 1979 11820000.3243983 1980 6450000.01788139 1981 14200000.2730638 1982 10299999.8144805 1983 6259999.98673797 1984 4350000.15608966 1985 4739999.99091029 1986 23900000.154972102 1987 43920000.407844804 1988 16289999.9171495 1989 25180000.2269447 1990 44669998.772442296 1991 33619999.8930097 1992 29919999.0741909 1993 33859999.8429418 1994 27169999.0332127 1995 30400000.747293197 1996 34499999.0165234 1997 36260000.3667176 1998 42490002.0752102 1999 52329998.2305616 2000 57319999.9071658 2001 33060000.2929568 2002 20909999.480471 2003 49580001.6149879 2004 36629998.9633262 2005 52079999.8082221 2006 87239998.7615645 2007 98439998.9638478 2008 112469998.504966 2009 70489999.5196611 2010 113900000.92796999 2011 81940000.1168251 2012 101860000.023618 2013 154209999.570623 2014 161470002.85610598 2015 125950001.088902 2016 134100002.86996399 2017 257939999.077469 2018 174460001.64747202 2019 206570000.084117 2020 171289999.33973 2021 219720003.068447 2022 164629999.17566773