Year % of GDP 1992 41.36082715820184 1993 30.63722021322169 1994 26.90709764109611 1995 27.769771449600643 1996 27.268929439417438 1997 29.038191226681004 1998 27.826260513531093 1999 27.804207054683268 2000 29.296696829512836 2001 29.701426565143823 2002 29.928819249204825 2003 30.764878540775562 2004 31.133486442128138 2005 29.8032213654137 2006 30.62191428041359 2007 31.410285218615623 2008 32.11537233854192 2009 28.791113391185352 2010 29.748407699603096 2011 30.485850923817896 2012 30.039365319814216 2013 29.740368456686845 2014 30.1729314894397 2015 30.540334212900603 2016 31.0748484680097 2017 32.471955229402674 2018 33.746659729048254 2019 33.30074724199481 2020 32.549289461891156 2021 34.636577380979055 2022 34.64993126892107 2023 34.223616198042265