Year Percent of GDP 1993 43.417 1994 36.766 1995 25.636 1996 24.36 1997 27.797 1998 27.668 1999 24.555 2000 27.088 2001 25.279 2002 22.944 2003 24.954 2004 28.667 2005 28.46 2006 32.184 2007 34.092 2008 37.642 2009 36.864 2010 40.656 2011 37.218 2012 35.094 2013 38.798 2014 34.841 2015 29.035 2016 26.478 2017 28.03 2018 28.563 2019 28.309 2020 27.942 2021 27.721 2022 27.785 2023 27.747 2024 28.1