Year % of GDP 2003 0.0182600002735853 2004 0.0159000009298325 2005 0.0269699990749359 2006 0.0196899995207787 2007 0.0252100005745888 2008 0.0184199996292591 2009 0.021059999242425 2012 0.265329986810684 2013 0.321319997310638 2014 0.257250010967255 2015 0.21603000164032 2016 0.213369995355606 2017 0.197799995541573 2018 0.191990002989769 2019 0.190009996294975 2020 0.203250005841255 2021 0.190540000796318 2022 0.187490001320839