Year % of total social insurance benefits 2006 1.5027942270226 2009 1.39677609770237 2011 1.70536085871561 2012 1.78543427255233 2015 1.79714935794152 2016 1.66456216649892 2017 1.74652823845069 2018 1.62858536085464 2019 1.5634954580013 2020 1.64571812432901