Year % of GDP 1990 11.967211769568335 1991 9.346211664787704 1992 7.245442943027657 1993 8.14906230524431 1994 9.447696290251425 1995 11.781514791687647 1996 12.26317191822799 1997 13.743171488941488 1998 15.4610847846983 1999 15.650266665413252 2001 11.779922719272166 2002 12.754841357761615 2003 13.064293275277544 2004 11.904046384768952 2005 10.936464737801327 2006 8.87143240493906 2007 8.267382600535143 2008 10.14310017612953 2009 9.401886355165372 2010 10.761837517195708 2011 10.8764740793191 2012 11.0704406589647 2013 10.440287579858062 2014 9.737452986406362 2015 9.943344344087757 2016 9.358219992438608 2017 9.44482816270803 2018 8.973363667764183 2019 7.788224800033522 2020 7.1046265554558605 2021 6.554603355156524 2022 5.055721095493352