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_203_770 ( id number, "ages attained (years)" text, "catholic" text, "protestant and other christian" text, "other religion" text, "none or not stated" text )

### Question ###
how many age ranges are represented in the table ?

### Accurate SQL ###

SELECT COUNT(DISTINCT "ages attained (years)") FROM table_203_770