Year Percent of GDP 1994 17.311 1995 19.28 1996 21.333 1997 22.066 1998 20.259 1999 21.12 2000 22.526 2001 23.683 2002 34.507 2003 33.2 2004 31.522 2005 32.032 2006 30.579 2007 32.254 2008 33.474 2009 34.565 2010 34.656 2011 32.742 2012 34.556 2013 35.17 2014 33.083 2015 34.935 2016 33.565 2017 32.747 2018 29.757 2019 27.818 2020 28.14 2021 27.772 2022 27.928 2023 28.421 2024 29.811