Year % of total SPL benefits 2010 3.80290265639296 2011 3.01560829003782 2012 2.83594930932736 2014 2.98749568648538 2015 3.57736846919269 2016 3.15530042274628 2017 3.09411004696084 2018 2.73094240886192 2019 2.49216149620534 2020 1.82493148588701