Year DOD, current US$ 1976 5187570.9 1977 7273683.5 1978 17182497.3 1979 24443058.1 1980 41582192.2 1981 37825208.1 1982 30502094.6 1983 23435975.8 1984 15541229.6 1985 21781668.6 1986 23496448.8 1987 43006677.9 1988 52702994.8 1989 52370590.2 1990 43941699.4 1991 38475707.6 1992 43594375 1993 49184434.8 1994 54996927.3 1995 48238087.4 1996 39154213.6 1997 29692943.8 1998 24158979.3 1999 28786749.6 2000 22953104.9 2001 17920718.5 2002 14822574.7 2003 23470599 2004 34732758 2005 31965337.7 2006 55098349.1 2007 91662085.2 2008 89343053.3 2009 182751265.5 2010 219056329.7 2011 214000669.7 2012 203821088.7 2013 188860260.4 2014 165284023.7 2015 193660005.5 2016 170623931.2 2017 168062080.9 2018 156194238 2019 147411972.8 2020 370271418.6 2021 560307798.7 2022 632511448.6