Year Percent of GDP 1980 17.228 1981 17.748 1982 16.376 1983 17.014 1984 16.766 1985 14.988 1986 12.497 1987 15.391 1988 14.734 1989 12.924 1990 9.333 1991 11.168 1992 13.52 1993 15.78 1994 14.984 1995 21.351 1996 20.343 1997 22.893 1998 22.199 1999 23.115 2000 26.967 2001 26.975 2002 24.127 2003 23.833 2004 27.232 2005 28.449 2006 28.979 2007 28.551 2008 33.056 2009 35.843 2010 35.909 2011 37.036 2012 39.319 2013 40.615 2014 45.711 2015 44.042 2016 40.201 2017 45.362 2018 43.599 2019 45.356 2020 44.481 2021 44.992 2022 45.446 2023 44.477 2024 43.341