Year Percent of GDP 1992 34.373 1993 37.219 1994 45.723 1995 37.323 1996 41.103 1997 33.819 1998 30.531 1999 34.957 2000 30.533 2001 28.758 2002 29.72 2003 28.752 2004 27.263 2005 31.605 2006 27.942 2007 32.434 2008 28.036 2009 30.092 2010 34.02 2011 30.759 2012 30.155 2013 33.744 2014 37.998 2015 35.067 2016 36.063 2017 34.249 2018 34.293 2019 33.768 2020 33.868 2021 33.368 2022 33.468 2023 33.468 2024 33.468