Year Percent of GDP 1995 15.953 1996 15.553 1997 15.574 1998 13.161 1999 16.719 2000 18.208 2001 15.55 2002 17.879 2003 19.343 2004 12.76 2005 11.51 2006 13.932 2007 17.061 2008 18.795 2009 24.139 2010 24.354 2011 22.368 2012 23.879 2013 22.805 2014 21.978 2015 18.34 2016 14.517 2017 15.16 2018 14.591 2019 14.863 2020 14.253 2021 14.079 2022 13.461 2023 13.545 2024 13.661