Year Percent of GDP 1980 34.882 1981 40.148 1982 42.513 1983 41.158 1984 35.856 1985 29.876 1986 27.917 1987 24.829 1988 27.646 1989 30.482 1990 35.433 1991 39.869 1992 38.747 1993 41.987 1994 43.803 1995 46.924 1996 45.19 1997 46.314 1998 28.784 1999 23.81 2000 28.037 2001 26.652 2002 25.101 2003 24.299 2004 23.643 2005 22.275 2006 22.396 2007 23.027 2008 21.117 2009 18.927 2010 23.386 2011 23.188 2012 25.749 2013 25.937 2014 24.978 2015 25.137 2016 25.834 2017 25.558 2018 23.626 2019 24.614 2020 24.564 2021 24.715 2022 24.976 2023 25.065 2024 25.179