Year % of GDP 1994 19.276677188996963 1995 18.493506601911353 1996 19.896846565311755 1997 18.82751803402583 1998 21.894157300035616 1999 20.03926155933109 2000 20.98835160875467 2001 21.76276217602921 2002 23.115336935283253 2003 21.919836431528953 2004 23.610712374353025 2005 25.276478896728573 2006 26.52668526202195 2007 25.42574150119736 2008 26.107836617478743 2009 22.96783477356899 2010 23.215551530135045 2011 24.398470868669392 2012 24.10959459122028 2013 23.810474857609147 2014 24.569431001749077 2015 24.915382579998134 2016 23.8544542583427 2017 25.271074701005684 2018 26.904439896861135 2019 25.45587847894265 2020 25.451072267083685 2021 27.891112553605424 2022 28.867947991191826 2023 24.7477177795064