Year Percent of GDP 1991 46.355 1992 47.17 1993 47.952 1994 47.917 1995 54.66 1996 48.942 1997 48.057 1998 47.686 1999 47.694 2000 44.749 2001 46.908 2002 47.264 2003 47.816 2004 46.312 2005 46.2 2006 44.696 2007 42.817 2008 43.573 2009 47.576 2010 47.255 2011 44.71 2012 44.295 2013 44.688 2014 43.961 2015 43.709 2016 43.888 2017 43.933 2018 43.873 2019 44.304 2020 44.258 2021 44.201 2022 44.19 2023 44.195 2024 44.178