Year current US$ 1975 1068067399.9999999 1976 846275600 1977 882373400 1978 869687000 1979 1173271000 1980 1771437800 1981 2075379800.0000002 1982 1897496600 1983 1511969000 1984 1321559600 1985 1240642500 1986 1338069700 1987 1434185800 1988 1591090300 1989 1799810800 1990 2002043200 1991 2347724600 1992 2463290200 1993 2129789900.0000002 1994 2516441800 1995 2909963900 1996 3073962200 1997 3805024100 1998 2888629300 1999 2298400000 2000 2402207000 2001 2232400000 2002 2218000000 2003 2179631000 2004 2413376200 2005 2445682100 2006 2551253800 2007 2454805000 2008 3005097200 2009 4088721400 2010 6440274000 2011 7708917000 2012 8386153399.999999 2013 7000435600 2014 6578074800 2015 7503864600 2016 6426700400 2017 5340673368.437849 2018 9695643540.552475 2019 6165817120.102074 2020 5381791596.400062 2021 7964342243.026231 2022 10126033842.348232