One less thing for enthusiastic support posters to complain about

"We’re also adding new end-of-game stats for how long you CCed your enemies, how effective your warding and counter-warding was, and how much damage you mitigated via shields and resistances. We’ll continue our expansion of end-of-game stats throughout the season, hitting stuff like deaths prevented, healing done to allies, and damage mitigated on allies. "

http://na.leagueoflegends.com/en/news/game-updates/gameplay/intro-midseason-2017