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_37 (decile INTEGER, roll VARCHAR, area VARCHAR)

### Question ###
What is the decile sum with a roll smaller than 25, and franz josef area?

### Accurate SQL ###

SELECT SUM(decile) FROM table_name_37 WHERE roll < 25 AND area = "franz josef"