Ratio is usually 99/1. 

...with 9% of the 99% being reply guys, if the research is to be believed. 
https://image.nostr.build/1c15ce5ee86e5b6a5abbda2a230138c1c03c18b17e3c8d00a6a37ceabe1271e4.jpg
https://en.m.wikipedia.org/wiki/1%25_rule