Year Percent of GDP 1980 36.421 1981 38.178 1982 38.257 1983 32.538 1984 27.247 1985 25.937 1986 25.498 1987 30.004 1988 31.708 1989 29.847 1990 30.417 1991 27.156 1992 27.226 1993 23.935 1994 24.695 1995 24.181 1996 24.381 1997 26.51 1998 28.302 1999 29.015 2000 28.764 2001 28.143 2002 26 2003 23.63 2004 24.18 2005 23.657 2006 23.234 2007 23.071 2008 23.566 2009 20.791 2010 21.081 2011 18.598 2012 15.716 2013 14.632 2014 15.303 2015 15.823 2016 15.722 2017 16.884 2018 17.969 2019 18.555 2020 18.526 2021 18.68 2022 18.969 2023 19.124 2024 19.334