Year current US$ 1965 330000 1967 1580000 1968 100000 1969 120000 1970 4860000 1971 7960000 1972 14510000 1973 17370000 1974 48250000 1975 66980000.00000001 1976 88840000 1977 170910000 1978 257910000.00000003 1979 288570000 1980 368070000 1981 337790000 1982 309310000 1983 245470000 1984 304260000 1985 251820000 1986 408910000 1987 475310000 1988 520000000 1989 451250000 1990 582760000 1991 412290000 1992 546580000 1993 477880000 1994 493950000 1995 662820000 1996 663620000 1997 617890000 1998 612660000 1999 418060000 2000 553130000 2001 757130000 2002 918220000 2003 972630000 2004 1045380000.0000001 2005 1065210000 2006 939540000 2007 1180700000 2008 1355140000 2009 1094560000 2010 1331700000 2011 816440000 2012 665030000 2013 693830000 2014 589890000 2015 462050000 2016 506530000 2017 546300000 2018 608430000 2019 603380000 2020 604750000 2021 544070000 2022 541350000