Year Percent of GDP 1995 38.689 1996 38.737 1997 37.83 1998 36.621 1999 36.385 2000 35.746 2001 33.467 2002 32.69 2003 33.353 2004 34.477 2005 34.934 2006 36.638 2007 36.198 2008 34.823 2009 33.212 2010 33.019 2011 33.747 2012 33.974 2013 34.22 2014 33.843 2015 27.049 2016 26.992 2017 26.063 2018 25.77 2019 25.897 2020 25.413 2021 25.276 2022 24.517 2023 24.175 2024 24.04