Year % of total SPL benefits 2008 5.74946036346411 2010 5.66278286301374 2011 5.58992650530298 2012 5.4125768384545 2014 5.18407601260455 2015 5.54542507172132 2016 5.47813840693515 2017 5.89130503453272 2018 6.97801823518462 2019 6.54461042172871 2020 9.55274984985883