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_24231638_3 (position_in_table VARCHAR, date_of_vacancy VARCHAR)

### Question ###
How many times was the date of vacancy 14 february 2011?

### Accurate SQL ###

SELECT COUNT(position_in_table) FROM table_24231638_3 WHERE date_of_vacancy = "14 February 2011"