CREATE TABLE table_name_86 (election_date INT, number_of_deputies VARCHAR, number_of_votes_received VARCHAR)

What was the average election year that has less than 136 deputies, and 1,560,753 votes received?
SELECT AVG(election_date) FROM table_name_86 WHERE number_of_deputies < 136 AND number_of_votes_received = "1,560,753"
SELECT AVG("election_date") FROM "table_name_86" WHERE "1,560,753" = "number_of_votes_received" AND "number_of_deputies" < 136