Year % of GDP 1992 50.10596065964633 1993 32.47093536921759 1994 26.71354894502184 1995 12.711687909807722 1996 11.48738308860511 1997 13.431995589353612 1998 15.163009552376868 1999 16.7651712150611 2000 17.947334882653525 2001 21.666961498861134 2002 27.81643165122706 2003 34.37259934554272 2004 35.15788609867597 2005 42.43602151561581 2006 46.20443180389828 2007 52.743073475606636 2008 52.050588348664085 2009 51.45476491468594 2010 53.35352072005247 2011 50.80979490229384 2012 52.99162158270738 2013 59.69790223722677 2014 60.288529873788455 2015 49.989439045934105 2016 46.22769576424214 2017 40.54905288778379 2018 35.885589636831924 2019 36.163924548852734 2020 43.81799998327201 2021 38.00064977453641 2022 47.748940152874134 2023 47.06741529601327