CREATE TABLE table_19430 ("School Year" TEXT, "Class A" TEXT, "Class AA" TEXT, "Class AAA" TEXT, "Class AAAA" TEXT, "Class AAAAA" TEXT)

How many Class AAAA winners where in 2002-03?
SELECT COUNT("Class AAAA") FROM table_19430 WHERE "School Year" = '2002-03'
SELECT COUNT("Class AAAA") FROM "table_19430" WHERE "School Year" = '2002-03'