Year % of GDP 1994 74.25386658549338 1995 65.52712918390368 1996 68.03531669373724 1997 66.95948320083973 1998 63.80066687116718 1999 65.18214363603667 2000 62.59224371004398 2001 61.9748688489723 2002 61.65360414400279 2003 61.63658156836447 2004 62.41250682746609 2005 61.371894003050734 2006 63.59781602058933 2007 59.86816060510656 2008 57.68161484943539 2009 60.50702715493593 2010 63.33676839536532 2011 61.540915125805505 2012 60.50443671233789 2013 62.37370329522032 2014 61.272438497537564 2015 59.86429094495121 2016 60.691180326261254 2017 60.65951061487933 2018 59.59984778529247 2019 58.720256185312536 2020 57.016744437346645 2021 57.10438942992238 2022 60.28335140450392 2023 61.13885112856017