What was the earliest year that had a start of Saint-Gaudens and a stage smaller than 15?
CREATE TABLE "appearances_in_tour_de_france" (
  "year" real,
  "stage" real,
  "category" real,
  "start" text,
  "finish" text,
  "leader_at_the_summit" text
);
SELECT MIN("year") FROM "appearances_in_tour_de_france" WHERE "start"='saint-gaudens' AND "stage"<15;