Year % of GDP 1990 15.69368220252097 1991 12.951949178733068 1992 11.117000489606543 1993 10.212256833727944 1994 12.136532375538199 1995 11.576507354538998 1996 10.825387089738559 1997 12.093774160301626 1998 15.614310256680264 1999 17.717120701318713 2001 14.512718908747404 2002 17.245561868199353 2003 15.763373292799454 2004 16.16704922995662 2005 14.851658903120727 2006 9.515827032766994 2007 7.693193532277662 2008 12.878060640816086 2009 12.153116711878607 2010 12.50319755162115 2011 10.583931315437969 2012 8.466379844596386 2013 10.21191395111918 2014 9.552433676553985 2015 10.377637013547183 2016 10.089296541629123 2017 11.23250356340402 2018 10.817475393563809 2019 9.705413377318079 2020 8.412269291678163 2021 8.41742073128506 2022 7.422450123448619