Year % of GDP 2002 32.776384255183785 2003 48.2453384728239 2004 43.86751661177932 2005 44.16984908277433 2006 42.95248947698891 2007 36.97535262196461 2008 36.09600540637572 2009 31.94142774063724 2010 34.81055069783911 2011 48.13583063418298 2012 51.65650546681747 2013 46.44952469318763 2014 43.91030041326911 2015 42.93025759895379 2016 41.40344269725859 2017 38.66271790426659 2018 36.630810032236674 2019 32.78862493229126 2020 46.118505939169246 2021 51.36975476991205 2022 54.566672234442784