CREATE TABLE "stockholm_derbies" (
  "date" text,
  "venue" text,
  "opponents" text,
  "score" text,
  "attendance" text
);

Question: What was the number of attendance at Stadion with a score of 2-0
SQL: SELECT "attendance" FROM "stockholm_derbies" WHERE "venue"='stadion' AND "score"='2-0';