Year % of GDP 1994 33.70507201826459 1995 36.77546029344447 1996 37.78258311105277 1997 35.51200432177357 1998 35.169442353888755 1999 35.21685127930678 2000 34.4352807675498 2001 34.130455609797075 2002 34.12139284887109 2003 34.61178837398791 2004 33.35790918514149 2005 33.42288993804578 2006 33.55228194004314 2007 34.147065441615844 2008 33.74434373423804 2009 32.6108413304551 2010 32.59511897080007 2011 32.914494634454655 2012 33.44412686246416 2013 33.73935174360172 2014 33.86616388965973 2015 34.46254232491359 2016 34.10193901902655 2017 34.00020044735204 2018 34.36391207491485 2019 34.462709677765886 2020 34.675232489458814 2021 35.029182333907144 2022 34.43922438417999