Year Percent of GDP 2000 51.567 2001 76.075 2002 72.058 2003 65.738 2004 57.736 2005 50.764 2006 44.681 2007 38.168 2008 38.15 2009 43.857 2010 40.083 2011 36.479 2012 32.724 2013 31.382 2014 28.769 2015 27.643 2016 28.311 2017 28.261 2018 29.052 2019 29.929 2020 28.326 2021 28.093 2022 28.117 2023 27.579 2024 26.664