Year Percent of GDP 1990 16.532 1991 39.437 1992 32.74 1993 27.913 1994 28.317 1995 29.631 1996 29.269 1997 29.645 1998 27.537 1999 26.066 2000 32.165 2001 26.434 2002 20.095 2003 22.402 2004 24.107 2005 31.731 2006 35.777 2007 34.778 2008 39.587 2009 28.87 2010 32.781 2011 36.487 2012 38.147 2013 38.722 2014 35.038 2015 28.996 2016 28.864 2017 28.784 2018 28.441 2019 30.532 2020 28.891 2021 28.61 2022 28.356 2023 28 2024 27.356