Year current US$ 1970 3699999.9564141 1971 1600000.0089406946 1972 1819999.9704957004 1973 3509999.9196827365 1974 2469999.995082615 1975 1470000.0248849387 1976 10610000.088810932 1977 9259999.95321035 1978 9150000.164285298 1979 4189999.8374283337 1980 2010000.0314414487 1981 7660000.111907722 1982 3189999.92311001 1983 5750000.208616257 1984 5659999.8939782325 1985 6099999.949336055 1986 1980000.0060349712 1987 4269999.932497735 1988 5429999.956861138 1989 3139999.9521672693 1990 3589999.992400409 1991 8609999.98450279 1992 10609999.788925052 1993 11700000.15199185 1994 17670000.012963973 1995 38309999.66338276 1996 21669999.608769994 1997 30259999.84703959 1998 42190000.35896892 1999 34780000.70527203 2000 30379999.611526717 2001 32210000.04000963 2002 30949999.650940266 2003 35749999.59953132 2004 41049999.64125453 2005 37670001.00016593 2006 31700000.789016504 2007 41060000.65803531 2008 32439999.084919732 2009 33709999.30799008 2010 26960000.51498417 2011 32300001.138821207 2012 70779996.28707764 2013 21989999.931305695 2014 249550005.03361276 2015 221399993.87413228 2016 53500000.78231102 2017 47919999.085366756 2018 34719999.12895267 2019 -100510003.12715787 2020 -109599999.47249845 2021 42809998.53461981 2022 2212229912.2065353