How many centerfold models were there when the cover model was Torrie Wilson?
CREATE TABLE table_20228 (
    "Date" text,
    "Cover model" text,
    "Centerfold model" text,
    "Interview subject" text,
    "20 Questions" text,
    "Pictorials" text
)
SELECT COUNT("Centerfold model") FROM table_20228 WHERE "Cover model" = 'Torrie Wilson'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many centerfold models were there when the cover model was Torrie Wilson? ### Input: CREATE TABLE table_20228 (
    "Date" text,
    "Cover model" text,
    "Centerfold model" text,
    "Interview subject" text,
    "20 Questions" text,
    "Pictorials" text
) ### Response: SELECT COUNT("Centerfold model") FROM table_20228 WHERE "Cover model" = 'Torrie Wilson'