Year % of GDP 1993 10.762352449524846 1994 10.69097803782116 1995 13.916832948061622 1996 12.67608988465328 1997 13.419613960750674 1998 12.386312863812499 1999 15.978928653945824 2000 18.310482557815984 2001 15.82889910388008 2002 19.028798335363373 2003 18.671426384376417 2004 18.34002115316983 2005 18.88709965551292 2006 19.345900902168513 2007 19.77119146693019 2008 17.26702364572105 2009 20.125610781881438 2010 16.194070140732705 2011 15.971773120675886 2012 17.361271165528073 2013 18.945960763674606 2014 21.039759508915935 2015 21.434962501243124 2016 21.685195530688343 2017 21.8977204778493 2018 22.551029528223637 2019 23.358114535464168 2020 24.02431501628864 2021 22.877437238837015 2022 22.011476344927626 2023 15.298099260413572