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_26400041_2 ( weeks_in_top_10 INTEGER, peak VARCHAR )

### Question ###
if the peak is 9, how many weeks was it in the top 10?

### Accurate SQL ###

SELECT MAX(weeks_in_top_10) FROM table_26400041_2 WHERE peak = 9