CREATE TABLE "parliamentary_elections" (
  "election_date" real,
  "party_leader" text,
  "number_of_votes_received" text,
  "percentage_of_votes" text,
  "number_of_deputies" real
);

Question: What was the average election year that has less than 136 deputies, and 1,560,753 votes received?
SQL: SELECT AVG("election_date") FROM "parliamentary_elections" WHERE "number_of_deputies"<136 AND "number_of_votes_received"='1,560,753';

Question: What percentage of the vote was 1,255,153 of received votes?
SQL: SELECT "percentage_of_votes" FROM "parliamentary_elections" WHERE "number_of_votes_received"='1,255,153';

Question: What were the number of deputies for the 1964 election year?
SQL: SELECT "number_of_deputies" FROM "parliamentary_elections" WHERE "election_date"=1964;

Question: What is the number of deputies with 94.2% of the votes?
SQL: SELECT SUM("number_of_deputies") FROM "parliamentary_elections" WHERE "percentage_of_votes"='94.2%';

Question: What was deputies with the lowest number of unknown received votes, in an election year after 1986?
SQL: SELECT MIN("number_of_deputies") FROM "parliamentary_elections" WHERE "number_of_votes_received"='unknown' AND "election_date">1986;