Year DOD, current US$ 1976 5079.4 1977 9000950.1 1978 17000000 1979 21008663 1980 26015824.4 1981 20000000 1982 21000000 1983 16000000 1984 37014000 1985 27000000 1986 27079795.9 1987 39305295.4 1988 41502781.1 1989 45083297.3 1990 47136924.7 1991 50284732.9 1992 55109091.4 1993 59282094.1 1994 33585323.5 1995 32169810.2 1996 34434520.3 1997 76808112.9 1998 49455344.3 1999 53790952.6 2000 38334171.1 2001 34570461.1 2002 43781207.3 2003 27058934.8 2004 15321484 2005 15364631.6 2006 19165773.4 2007 23561728.2 2008 6718824.1 2009 10148053.9 2010 14127169 2011 112047715 2012 86049152 2013 11090095.8 2014 24984491.4 2015 11269381.5 2016 226616653.1 2017 306583071.6 2018 354277442.6 2019 343402350.1 2020 378186718 2021 413511718 2022 376386041.1