CREATE TABLE table_22435 ("Rank" FLOAT, "Title" TEXT, "Release Date" TEXT, "Franchise" TEXT, "Developer ( s ) " TEXT, "Platform" TEXT, "Units sold  ( in Millions ) " TEXT)

How many titles were released on 21 October 1992?
SELECT COUNT("Rank") FROM table_22435 WHERE "Release Date" = '21 October 1992'
SELECT COUNT("Rank") FROM "table_22435" WHERE "Release Date" = '21 October 1992'