Year % of total SPL benefits 2006 1.63057179874193 2007 2.05156159384885 2008 14.6732337779674 2009 14.6368323443629 2011 14.5771617044559 2012 14.7252273998473 2014 8.09005257685152 2015 8.28158802426689 2016 7.12125329695152 2017 9.94343214907006 2018 8.98935977279222 2019 6.08063054231986 2020 8.5522783781951