There's this book that may help:
https://www.amazon.co.uk/Flak-Anti-a.../dp/0700614206
It's a long time since I read it so I don't remember if it gave the totals you're after. I do however remember that he seemed to think the Flak was underrated (had he never read any pilots' memoirs?) and his constant repetition of the phrase "the German ground-based air defences"!