Year % of GDP 1990 65.22711701485821 1991 23.73080172282466 1992 24.40037929495761 1993 25.1735429554863 1994 11.310869346491321 1995 10.9220556021652 1996 10.803350445315704 1997 11.295196762836808 1998 11.448178179085309 1999 12.682970801948182 2000 12.693234821707437 2001 14.415206445333368 2002 12.201122813622677 2003 13.152692617897893 2004 12.923667917499767 2005 13.717563101442584 2006 15.078004846934482 2007 14.694286350592547 2008 15.207480625994824 2009 15.497419889709759 2010 14.993305742685456 2011 14.975101621939757 2012 15.228936798619316 2013 15.090745288348575 2014 15.427780786171827 2015 15.924328688301328 2016 16.393740722321322 2017 16.522227933694627 2018 16.847237386407805 2019 16.451776811213346 2020 16.474409302210415 2021 17.257049095305963 2022 16.67254983684578