Year Percent of GDP 1980 33.133 1981 28.87 1982 25.998 1983 25.353 1984 27.248 1985 26.883 1986 26.773 1987 26.917 1988 25.657 1989 26.486 1990 26.704 1991 26.97 1992 26.292 1993 25.361 1994 26.187 1995 26.768 1996 26.338 1997 26.214 1998 26.106 1999 26.118 2000 25.927 2001 25.161 2002 23.643 2003 24.409 2004 24.061 2005 23.825 2006 23.61 2007 24.584 2008 24.467 2009 22.775 2010 22.608 2011 24.14 2012 23.977 2013 23.723 2014 23.532 2015 23.805 2016 24.326 2017 25.138 2018 25.545 2019 25.635 2020 25.733 2021 25.764 2022 26.25 2023 26.247 2024 26.45