Year current US$ 1970 90000.0035762787 1972 319999.99284744303 1973 100000.00149011599 1974 1669999.95708466 1975 990000.009536743 1976 200000.00298023198 1977 610000.014305115 1978 850000.023841858 1979 1809999.9427795399 1980 1159999.9666214 1981 1309999.9427795399 1982 50000.0007450581 1983 5059999.94277954 1984 12270000.4577637 1985 15119999.8855591 1986 21950000.762939498 1987 15460000.038146999 1988 18809999.4659424 1989 10600000.3814697 1990 25500000 1991 19920000.0762939 1992 32409999.847412102 1993 26790000.915527303 1994 27959999.084472697 1995 23690000.5340576 1996 35150001.5258789 1997 36310001.373291 1998 29600000.3814697 1999 30079999.9237061 2000 25360000.6103516 2001 26709999.084472697 2002 22600000.3814697 2003 73139999.3896484 2004 36590000.1525879 2005 39380001.0681152 2006 52009998.3215332 2007 43860000.6103516 2008 43790000.9155273 2009 77830001.8310547 2010 64690002.44140631 2011 52049999.237060495 2012 61560001.373291 2013 82110000.6103516 2014 35930000.3051758 2015 51290000.9155273 2016 75639999.3896484 2017 71519996.6430664 2018 43169998.1689453 2019 66559997.55859381 2020 44419998.1689453 2021 40279998.779296905 2022 49770000.4577637