CREATE TABLE "rankings" (
  "name" text,
  "rank" real,
  "out_of" text,
  "source" text,
  "year" real
);

Question: Concerning protestantism by country, the ranking is out of how many total?
SQL: SELECT "out_of" FROM "rankings" WHERE "source"='protestantism by country';

Question: What is the lowest rank that the protestants population holds?
SQL: SELECT MIN("rank") FROM "rankings" WHERE "name"='protestants population';