Throughout human history, what was the approximate ratio of cultures eating meat vs. being vegetarian? And let's include eating fish under meat eating, for discussion's sake, to contrast with vegetarianism. 

Wikipedia discusses topic at some length and says India has a long history of vegetarianism.  So there is no question vegetarianism was common.

Is there a ballpark figure expressed in percentages as to what portion of humanity was meat eating vs. vegetarian over millennia?