Baseball-Reference has splits by position. Both for leagues and for players
https://www.baseball-reference.com/l...year=1969#defp
You can see "as PH" and then there's a column for sacrifice hits. You can kind of ballpark it from there.I looked at Piniella's career numbers and he sacrificed as a PH twice in his career. Both were not for the pitcher though, and one is a clear squeeze bunt. I wouldn't say common, but it happened occasionally.