Year % of GDP 2007 0.0455400012433529 2008 0.0343500003218651 2009 0.0456200018525124 2010 0.0368399992585182 2011 0.0347599983215332 2014 0.0383500009775162 2015 0.0401699990034103 2016 0.0373700000345707 2017 0.0459600016474724 2018 0.0427899993956089 2019 0.032660000026226 2020 0.0405299998819828 2021 0.0410900004208088