CREATE TABLE "12_seats_needed_for_a_majority" (
  "date_released" text,
  "institute" text,
  "socialist" text,
  "social_democratic" text,
  "green_communist" text,
  "left_bloc" text,
  "peoples_party" text,
  "lead" text
);

Question: What is the lead percentage when the socialist is at 35.5%?
SQL: SELECT "lead" FROM "12_seats_needed_for_a_majority" WHERE "socialist"='35.5%';