Year Percent of GDP 1995 16.776 1996 20.122 1997 20.703 1998 21.249 1999 22.016 2000 29.011 2001 28.541 2002 28.396 2003 27.044 2004 26.833 2005 26.302 2006 26 2007 22.657 2008 21.649 2009 34.479 2010 38.177 2011 46.438 2012 53.786 2013 70.379 2014 80.365 2015 82.565 2016 78.681 2017 74.094 2018 68.491 2019 65.441 2020 63.371 2021 61.154 2022 59.077 2023 56.947 2024 54.851