Year Percent of GDP 1990 29.343 1991 28.494 1992 29.696 1993 32.532 1994 33.832 1995 32.065 1996 34.609 1997 34.832 1998 29.258 1999 28.305 2000 28.189 2001 26.218 2002 21.913 2003 19.577 2004 19.137 2005 19.909 2006 19.757 2007 23.79 2008 24 2009 17.37 2010 21.074 2011 23.073 2012 22.145 2013 21.335 2014 21.072 2015 21.185 2016 21.473 2017 22.644 2018 21.456 2019 21.405 2020 21.082 2021 21.122 2022 21.212 2023 21.252 2024 21.292