Year Percent of GDP 1980 22.526 1981 26.681 1982 29.31 1983 33.591 1984 40.061 1985 46.621 1986 47.142 1987 52.413 1988 57.069 1989 59.821 1990 73.155 1991 74.683 1992 79.968 1993 100.288 1994 98.296 1995 98.99 1996 101.335 1997 99.452 1998 97.425 1999 98.906 2000 104.935 2001 107.081 2002 104.863 2003 101.456 2004 102.87 2005 107.392 2006 103.574 2007 103.103 2008 109.416 2009 126.745 2010 146.25 2011 180.564 2012 159.586 2013 177.946 2014 180.212 2015 177.825 2016 181.074 2017 179.275 2018 183.257 2019 174.151 2020 167.266 2021 160.934 2022 153.79 2023 147.177 2024 143.197