Year % of GDP 1994 13.262758062814337 1995 11.81917874984769 1996 13.016189582355702 1997 11.418160540454279 1998 11.713948571709523 1999 10.650402697134295 2000 9.681008902077151 2001 8.47216324899468 2002 8.031947803588503 2003 6.980846774193548 2004 11.140318481023655 2005 8.989991610901926 2006 11.386795804274255 2007 8.92583867806111 2008 10.128036769533814 2009 10.021395797519077 2010 9.002737179156123 2011 8.342496491181018 2012 8.105894302283675 2013 7.598682993599941 2014 7.835050072553379 2015 7.408891815293006 2016 7.603827229413063 2017 7.040550595238096 2018 7.359645134733298 2019 7.05401698427058 2020 7.101605104399391 2021 6.316748578055111 2022 5.745219274216692