What is the score when the outcome was runner-up, earlier than 1975?
CREATE TABLE "singles_55_25_30" (
  "outcome" text,
  "date" real,
  "championship" text,
  "surface" text,
  "opponent" text,
  "score" text
);
SELECT "score" FROM "singles_55_25_30" WHERE "outcome"='runner-up' AND "date"<1975;