Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_66 (votes INTEGER, date VARCHAR, _percentage_of_national_vote VARCHAR)

### Question ###
How many votes were tallied in 1956 with a % of national vote larger than 11.47?

### Accurate SQL ###

SELECT SUM(votes) FROM table_name_66 WHERE date = "1956" AND _percentage_of_national_vote > 11.47