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_20228 ( "Date" text, "Cover model" text, "Centerfold model" text, "Interview subject" text, "20 Questions" text, "Pictorials" text )

### Question ###
How many centerfold models were there when the cover model was Torrie Wilson?

### Accurate SQL ###

SELECT COUNT("Centerfold model") FROM table_20228 WHERE "Cover model" = 'Torrie Wilson'