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_12 ( population__2006_ INTEGER, mother_tongue VARCHAR )

### Question ###
How many people ha Romanian as their mother tongue in 2006?

### Accurate SQL ###

SELECT MAX(population__2006_) FROM table_name_12 WHERE mother_tongue = "romanian"