Year Percent of GDP 1993 20.131 1994 14.74 1995 21.127 1996 20.658 1997 21.444 1998 20.714 1999 22.897 2000 23.49 2001 21.022 2002 20.721 2003 22.394 2004 23.517 2005 29.978 2006 28.429 2007 27.438 2008 29.479 2009 24.805 2010 26.186 2011 28.984 2012 32.259 2013 28.775 2014 28.202 2015 25.784 2016 23.099 2017 26.403 2018 26.278 2019 24.326 2020 25.621 2021 25.253 2022 25.501 2023 25.565 2024 25.811