Year % of GDP 1987 4.75367021560669 1988 4.85423994064331 1989 4.44185018539429 1990 4.69767999649048 1991 5.25961017608643 1993 5.38889980316162 1994 5.29777002334595 1996 5.04734992980957 1999 5.29117012023926 2000 4.90881013870239 2001 4.63617992401123 2002 4.54569005966187 2003 4.35209989547729 2004 4.50897979736328 2005 4.52449989318848 2006 4.52651977539062 2007 4.4466700553894 2008 4.37424993515015 2009 4.76118993759155 2010 5.13497018814087 2011 5.28898000717163 2012 5.52323007583618 2013 5.35071992874146 2014 5.48977994918823 2015 5.48285007476807 2016 5.4442400932312 2017 5.59867000579834 2018 5.64401006698608 2019 5.92770004272461 2020 6.18336009979248 2021 6.56205987930298 2022 6.18347978591919 2023 6.60400009155273