Year Percent of GDP 1980 24.715 1981 22.081 1982 21.759 1983 21.599 1984 22.411 1985 24.337 1986 23.033 1987 23.958 1988 24.924 1989 27.081 1990 26.647 1991 23.264 1992 21.704 1993 19.039 1994 20.345 1995 20.741 1996 20.502 1997 20.324 1998 21.461 1999 21.723 2000 22.86 2001 22.868 2002 21.865 2003 21.674 2004 21.649 2005 22.093 2006 23.12 2007 24.699 2008 24.611 2009 21.008 2010 22.996 2011 23.909 2012 22.696 2013 22.578 2014 23.429 2015 24.316 2016 24.518 2017 25.614 2018 26.334 2019 26.11 2020 26.338 2021 26.458 2022 26.687 2023 26.914 2024 27.144