Year % of GDP 1990 13.235300188176383 1991 11.208021640652007 1992 12.515156053858842 1993 9.343038794393369 1994 4.419310803819507 1995 7.2311640037914096 1996 13.128923924112096 1997 13.702944902742404 1998 9.713214365850707 1999 11.640034059616926 2000 13.920225788711916 2001 16.208521826695037 2002 16.102784236865304 2003 16.452982840423758 2004 18.541421843809342 2005 18.897959824819115 2006 18.8615191955913 2007 20.483759066312494 2008 18.597819783335893 2009 14.73763886545549 2010 18.383956947533157 2011 15.614482638346269 2012 8.995261462923327 2013 8.129398518649603 2014 9.610836243335335 2015 8.598769801588848 2016 9.174303908681173 2017 10.962424947307943 2018 9.72904790871064 2019 9.933710049859691 2020 10.396994775671137 2021 10.489703714435384 2022 9.699403985178947 2023 8.291469865215404