Year % of GDP 1995 73.61200915715709 1996 74.44198561955035 1997 71.76897102572197 1998 70.88890550860486 1999 68.64820398957849 2000 66.45752480493427 2001 64.85502654297261 2002 65.09364232625681 2003 66.25733768255567 2004 65.0777917733225 2005 65.48865920277987 2006 65.08824235915841 2007 68.10732381058561 2008 70.87423818737945 2009 68.49358455273723 2010 58.43458696944322 2011 56.484498628571245 2012 55.703648334375444 2013 56.88394676604073 2014 57.017107899133435 2015 59.33262921362833 2016 58.73700433787206 2017 57.997933254326206 2018 57.07689004859784 2019 56.828070053957305 2020 55.96708252327925 2021 55.51902652892458 2022 54.78581557890887