Year Percent of GDP 1994 22.198 1995 16.861 1996 13.223 1997 13.471 1998 18.188 1999 17.538 2000 21.855 2001 25.654 2002 22.451 2003 25.351 2004 24.55 2005 28.084 2006 27.452 2007 28.839 2008 28.295 2009 22.142 2010 23.943 2011 27.045 2012 26.343 2013 24.754 2014 23.742 2015 16.611 2016 16.125 2017 20.299 2018 20.377 2019 21.231 2020 21.679 2021 21.492 2022 21.43 2023 21.559 2024 21.719