Year Percent of GDP 1980 14.962 1981 11.478 1982 8.486 1983 8.365 1984 8.614 1985 8.546 1986 9.039 1987 10.105 1988 13.294 1989 13.39 1990 14.818 1991 10.56 1992 11.296 1993 11.448 1994 10.903 1995 11.252 1996 12.24 1997 12.813 1998 15.082 1999 14.903 2000 15.045 2001 18.5 2002 14.263 2003 16.846 2004 25.836 2005 23.773 2006 24.973 2007 33.018 2008 40.961 2009 35.648 2010 23.424 2011 17.638 2012 17.561 2013 15.861 2014 15.58 2015 16.808 2016 18.551 2017 18.879 2018 19.719 2019 20.796 2020 22.017 2021 22.92 2022 22.852 2023 22.587 2024 22.056