CREATE TABLE table_20230 ("Date" CLOB, "Cover model" CLOB, "Centerfold model" CLOB, "Interview subject" CLOB, "20 Questions" CLOB, "Pictorials" CLOB)

How many centerfolds were in the 9-98 issue?
SELECT COUNT("Centerfold model") FROM table_20230 WHERE "Date" = '9-98'
SELECT COUNT("Centerfold model") FROM "table_20230" WHERE "Date" = '9-98'