Year % of GDP 1996 0.212599992752075 1997 0.197559997439384 1998 0.199100002646446 1999 0.186509996652603 2000 0.192469999194145 2004 0.269939988851547 2005 0.241410002112389 2006 0.259030014276505 2007 0.255100011825562 2008 0.270240008831024 2009 0.433120012283325 2010 0.433450013399124 2011 0.531539976596832 2012 0.508989989757538 2013 0.638949990272522 2014 0.636489987373352 2015 0.718580007553101 2016 0.708480000495911 2017 0.644860029220581 2018 0.688390016555786 2019 0.796169996261597 2020 0.915639996528625 2021 0.911750018596649 2022 1.01968002319336