If the name is Timo Higgins, what is the total date of birth amount?
CREATE TABLE "roster" (
  "name" text,
  "position" text,
  "height" text,
  "weight" text,
  "date_of_birth" text,
  "home_team" text
);
SELECT COUNT("date_of_birth") FROM "roster" WHERE "name"='Timo Higgins';