Question: According to Pew Research in 2015, what percentage of the U.S population self-identified with this Protestant Christian denomination that Lakeland University is affiliated with?
Sentence (from "Caspar Erich Schieler"): Schieler first served as a priest at the age of twenty-five at Mainz, Cathedral ordained under Bishop Wilhelm Emmanuel von Ketteler in the year 1876.
Relevant evidence: No