Year % of GDP 1999 2.56853008270264 2000 2.59340000152588 2001 2.6828249692916852 2002 2.58010494709015 2004 2.56690001487732 2005 2.8372700214386 2006 2.83097004890442 2008 2.750200033187865 2009 2.92000007629395 2010 3.34388995170593 2011 3.17111992835999 2012 3.08200001716614 2013 3.244534969329835 2014 2.93780994415283 2015 3.21799993515015 2016 2.91133999824524 2017 2.946855068206785 2018 3.198354959487915 2019 3.01300001144409 2020 3.2424999475479153 2021 3.11049997806549 2022 3.21099996566772