Year current US$ 1972 2339999.91416931 1973 1299999.95231628 1974 4210000.03814697 1975 7079999.92370605 1976 9430000.30517578 1977 9600000.38146973 1978 8390000.34332275 1979 11609999.6566772 1980 20450000.762939498 1981 24450000.762939498 1982 16719999.3133545 1983 9960000.03814697 1984 12640000.3433228 1985 14409999.8474121 1986 13649999.6185303 1987 30190000.5340576 1988 21459999.084472697 1989 24219999.3133545 1990 41490001.6784668 1991 26889999.3896484 1992 26510000.2288818 1993 35240001.6784668 1994 29549999.237060502 1995 27389999.3896484 1996 27149999.6185303 1997 16120000.839233398 1998 13739999.7711182 1999 14069999.6948242 2000 21290000.915527303 2001 13060000.4196167 2002 7329999.92370605 2003 7159999.84741211 2004 870000.004768372 2005 -1789999.96185303 2006 -2190000.05722046 2007 -870000.004768372 2008 -3680000.0667572 2009 -3609999.89509583 2010 -3029999.97138977 2011 -4199999.80926514 2012 -3339999.91416931 2013 2240000.00953674 2014 -3000000 2015 -7380000.11444092 2016 13899999.6185303 2017 20879999.1607666 2018 63580001.8310547 2019 88360000.6103516 2020 26930000.3051758 2021 175899993.89648402 2022 214520004.272461