Who was the leader at the summit for the race in 2005?
CREATE TABLE "appearances_in_tour_de_france" (
  "year" real,
  "stage" real,
  "category" text,
  "start" text,
  "finish" text,
  "leader_at_the_summit" text
);
SELECT "leader_at_the_summit" FROM "appearances_in_tour_de_france" WHERE "year"=2005;