Year Percent of GDP 1993 76.08 1994 65.534 1995 62.718 1996 54.727 1997 58.682 1998 52.38 1999 55.946 2000 61.135 2001 61.545 2002 67.547 2003 74.057 2004 73.907 2005 67.403 2006 59.735 2007 52.391 2008 52.143 2009 52.066 2010 49.679 2011 47.476 2012 47.852 2013 45.741 2014 42.064 2015 41.491 2016 39.026 2017 39.917 2018 39.602 2019 39.104 2020 38.497 2021 37.878 2022 37.319 2023 36.852 2024 36.41