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_33 ( decile VARCHAR, roll VARCHAR, area VARCHAR, name VARCHAR )

### Question ###
How many values for decile occur in Mount Roskill with Monte Cecilia school with a roll greater than 170?

### Accurate SQL ###

SELECT COUNT(decile) FROM table_name_33 WHERE area = "mount roskill" AND name = "monte cecilia school" AND roll > 170