Year current US$ 1970 199999.95268881647 1971 3239999.9331682925 1972 380000.0138580802 1973 2209999.935701487 1974 2630000.0827759546 1975 -179999.99225139624 1976 1509999.9774247406 1977 33630000.94518061 1978 77390001.6117841 1979 4699999.92847442 1980 4719999.916851517 1981 129499998.614192 1982 89010002.36533588 1983 50399999.46206802 1984 81069999.81030822 1985 120210001.92314388 1986 81100000.301376 1987 82990000.02630061 1988 29519998.11083076 1989 12069999.67806041 1990 -140130000.42922765 1991 -87070000.05431473 1992 -156579998.48201853 1993 -161759997.1629677 1994 -44869998.887181304 1995 41509999.74086879 1996 36730000.207200654 1997 35549999.47920442 1998 38120000.466704346 1999 32030000.004917383 2000 35070000.79937283 2001 30359999.47600068 2002 39810000.59284267 2003 29160000.167787086 2004 31679999.97735026 2005 839379982.2125582 2006 263359993.5434756 2007 541310008.3228202 2008 718210008.2840773 2009 23400000.749155868 2010 15529999.86335634 2011 21020000.055432323 2012 21830000.191926956 2013 19020000.204443946 2014 18709999.786689878 2015 18370000.012218956 2016 31000000.78976157 2017 42780000.07010996 2018 33410000.184550893 2019 36610000.10371208 2020 41770000.021904655 2021 65789999.99165538 2022 53049999.98211859