CREATE TABLE table_6214 ("Election date" FLOAT, "Party leader" CLOB, "Number of votes received" CLOB, "Percentage of votes" CLOB, "Number of deputies" FLOAT)

What was the average election year that has less than 136 deputies, and 1,560,753 votes received?
SELECT AVG("Election date") FROM table_6214 WHERE "Number of deputies" < '136' AND "Number of votes received" = '1,560,753'
SELECT AVG("Election date") FROM "table_6214" WHERE "Number of deputies" < '136' AND "Number of votes received" = '1,560,753'