Year % of GDP 1986 7.38338040443406 1987 8.438503591191626 1988 7.280439109417679 1989 8.700306685738747 1990 12.607998874668766 1991 12.577881211061257 1992 13.504047414011321 1993 9.568054391190094 1994 13.242888044948526 1995 12.729248957719378 1996 13.056016128124293 1997 11.73484731846986 1998 12.180758407299416 1999 10.09617724311463 2000 9.262925466045223 2001 7.196860721879059 2002 7.544178036970631 2003 7.004680355931896 2004 6.408194726590557 2005 6.4534606169251205 2006 5.807609740369094 2007 3.766625054486695 2008 3.977775816267249 2009 4.085746432441566 2010 4.4640063815571835 2011 4.428820556670185 2012 4.641300242954303 2013 4.836280332557323 2014 5.188416650512693 2015 4.941930178073918 2016 5.103749510410878 2017 4.700958409745871 2018 4.578178686763427 2019 4.817970058854767 2020 5.185022416966598 2021 5.3856991269472445 2022 4.674509170235822 2023 4.642227046825933