Year Percent of GDP 1994 82.53 1995 80.745 1996 68.49 1997 63.392 1998 61.227 1999 58.079 2000 56.434 2001 60.895 2002 60.009 2003 59.477 2004 61.904 2005 62.482 2006 57.649 2007 49.168 2008 41.491 2009 40.49 2010 39.497 2011 36.943 2012 35.284 2013 34.394 2014 36.519 2015 37.385 2016 37.27 2017 37.527 2018 39.394 2019 37.808 2020 36.094 2021 34.568 2022 33.21 2023 32.037 2024 30.967