Year % of GDP 1993 39.15792153424037 1994 32.319306930693074 1995 28.668338108882523 1996 22.32033073929961 1997 19.688865302971823 1998 15.424061250365748 1999 17.334981412639404 2000 9.414003470084513 2001 16.382795069818236 2002 9.295718899060825 2003 9.136720292350988 2004 11.777289899956221 2005 11.647656315044543 2006 15.96644956722941 2007 24.63293867732967 2008 26.50872536285085 2009 24.844753617567928 2010 23.846181866750854 2011 29.209440293171852 2012 23.26736369393111 2013 24.9057147542124 2014 26.515698724943938 2015 44.68945305603616 2016 40.52231873160031 2017 29.929556152546084 2018 37.26343668377916 2019 35.38866234019047 2020 33.474951255563774 2021 34.873852723140836 2022 35.46750469827393