Year Percent of GDP 1995 26.095 1996 28.13 1997 24.529 1998 26.004 1999 27.698 2000 27.337 2001 25.855 2002 25.067 2003 30.694 2004 27.343 2005 27.418 2006 29.351 2007 30.481 2008 28.844 2009 27.493 2010 25.407 2011 27.856 2012 29.545 2013 30.025 2014 30.938 2015 32.399 2016 30.486 2017 28.977 2018 29.007 2019 29.431 2020 29.398 2021 29.18 2022 28.889 2023 28.464 2024 28.106