Does Agonizing Blast allow a Warlock to add their Charisma mod to each blast?

@JeremyECrawford Does Agonizing Blast allow a Warlock to add their CHA to each blast or only once like Sorcerer EA and Wizard EE?

— ZLTarkad (@ZLTarkad) February 21, 2016

Agonizing Blast applies every time eldritch blast hits. #DnD https://t.co/3o4F64Dymz

— Jeremy Crawford (@JeremyECrawford) February 27, 2016

@DrPaedan @ZLTarkad Would you say that is because Ag Blast triggers on hit, as opposed to the others that just give a damage bonus? Yes.

— Jeremy Crawford (@JeremyECrawford) March 1, 2016