Year % of GDP 1990 77.50958181329293 1991 78.3300808335488 1992 74.84708880348609 1993 78.20050533169393 1994 82.38842042086829 1995 81.83929922060167 1996 76.3722171181021 1997 75.72464098045786 1998 78.54204122311818 1999 76.78545005342448 2000 75.47253941737468 2001 71.61404105191349 2002 72.12992053942399 2003 71.1979988898713 2004 68.5014057991184 2005 69.44562314411458 2006 69.76219296147397 2007 67.59338130837487 2008 70.3482755669201 2009 74.37832628699319 2010 70.66181579081348 2011 73.6054659279015 2012 80.21799028373246 2013 77.28177740703318 2014 79.01801126154355 2015 80.72440993455061 2016 81.95622850313609 2017 80.0360049481225 2018 81.1713268937004 2019 80.92020616593011 2020 79.67097942676388 2021 80.11650005844895 2022 81.33106349307398 2023 83.37062543680327