Year % of GDP 2005 10.32821151407704 2006 10.84911880663971 2007 16.832691040783647 2008 12.274579608976747 2009 12.407324005885556 2010 12.016604186846775 2011 12.166905389666468 2012 12.133824803838007 2013 11.986559541734715 2014 16.00087785478961 2015 16.040960359523165 2016 15.56844681697629 2017 15.732367718144102 2018 16.33175435357962 2019 16.00132223301543 2020 14.125206613142609 2021 14.868453711732288 2022 15.193512189402059