Year current US$ 1970 43109714.28571428 1971 48002285.71428572 1972 52977142.85714286 1973 55473221.20310899 1974 67353650.79365079 1975 81940317.46031746 1976 92277101.44927536 1977 105641222.22222222 1978 125773333.33333333 1979 158472222.2222222 1980 213767777.7777778 1981 232192222.2222222 1982 259678888.8888889 1983 275729962.3453469 1984 233563612.06248435 1985 266219239.3736018 1986 301521415.43312603 1987 288152314.6649401 1988 279850422.0235763 1989 260665418.77012864 1990 260237657.29467753 1991 272570008.75970316 1992 245648751.57822978 1993 209797128.5008237 1994 247634200.89209735 1995 284731625.0130126 1996 244411876.13542527 1997 316892578.40215695 1998 299397341.46709675 1999 288591809.2128611 2000 279678448.11078584 2001 306865989.88378394 2002 293064146.25026464 2003 265421611.92292774 2004 311003862.1685696 2005 379982133.9978417 2006 454623774.8587781 2007 541379437.6021714 2008 617678723.3371483 2009 674092865.6939286 2010 750896812.3054935 2011 849481130.0557412 2012 906493518.87276 2013 883161273.1910433 2014 1058714111.2272872 2015 1532497331.0471725 2016 1260708893.4820197 2017 1343646374.4645507 2018 1309986090.132167 2019 1232285597.8721547 2020 1205066898.8283615 2021 1243709375.0824308 2022 1514898744.3052065 2023 1288626261.2561343