Year Percent of GDP 1990 17.232 1991 18.62 1992 20.155 1993 19.323 1994 18.057 1995 16.968 1996 18.793 1997 19.473 1998 22.312 1999 24.702 2000 23.607 2001 21.947 2002 21.793 2003 21.348 2004 23.069 2005 23.577 2006 23.038 2007 24.195 2008 26.142 2009 23.487 2010 23.092 2011 22.969 2012 22.873 2013 23.846 2014 24.741 2015 25.241 2016 26.985 2017 26.491 2018 26.884 2019 26.286 2020 26.181 2021 26.093 2022 26.036 2023 25.986 2024 25.938