Year Percent of GDP 1980 20.217 1981 19.762 1982 22.503 1983 14.413 1984 14.541 1985 16.007 1986 17.267 1987 18.408 1988 17.631 1989 16.993 1990 14.614 1991 18.416 1992 17.702 1993 18.861 1994 18.325 1995 17.226 1996 15.778 1997 18.014 1998 21.925 1999 15.952 2000 21.279 2001 22.349 2002 23.702 2003 19.59 2004 20.199 2005 21.637 2006 22.46 2007 22.705 2008 26.388 2009 25.639 2010 28.037 2011 28.142 2012 27.796 2013 28.467 2014 28.314 2015 26.87 2016 24.979 2017 26.28 2018 25.44 2019 25.794 2020 26.992 2021 26.487 2022 26.169 2023 26.19 2024 25.831