Year Percent of GDP 2000 57.345 2001 59.758 2002 64.067 2003 65.685 2004 61.109 2005 61.445 2006 61.155 2007 49.622 2008 50.66 2009 56.9 2010 57.064 2011 57.172 2012 56.6 2013 59.103 2014 62.033 2015 65.357 2016 66.211 2017 63.708 2018 65.199 2019 67.495 2020 67.808 2021 66.689 2022 65.48 2023 64.395 2024 63.357