Year % of GDP 2005 6.17098331451416 2006 6.16402912139893 2007 6.23999977111816 2008 6.44000005722046 2009 6.73999977111816 2010 6.69000005722046 2011 6.5 2012 6.25 2013 6.21000003814697 2014 6.09999990463257 2015 4.94678020477295 2016 4.80666017532349 2017 5.12287998199463 2018 4.92889022827148 2019 4.98727989196777 2020 5.43544006347656 2021 5.59000015258789 2022 5.44000005722046