Year current US$ 1965 2640000 1966 3230000 1967 2420000 1968 4040000 1969 4210000 1970 5070000 1971 6860000 1972 16469999.999999998 1973 11260000 1974 43290000 1975 31730000 1976 16180000 1977 18840000 1978 38570000 1979 63590000 1980 55520000 1981 72700000 1982 112410000 1983 66290000.00000001 1984 85850000 1985 47570000 1986 53470000 1987 65980000.00000001 1988 68080000 1989 105550000 1990 83560000 1991 77280000 1992 83700000 1993 83690000 1994 119000000 1995 117860000 1996 120780000 1997 105870000 1998 92620000 1999 142620000 2000 188380000 2001 132370000 2002 152500000 2003 178290000 2004 263470000.00000003 2005 298070000 2006 312560000 2007 489490000 2008 605120000 2009 528100000 2010 796140000 2011 1056250000 2012 1179990000 2013 942790000 2014 830580000 2015 588740000 2016 494040000 2017 614610000 2018 528419999.99999994 2019 518940000.00000006 2020 472940000 2021 679040000 2022 607670000