CREATE TABLE table_22370 ("Institution" TEXT, "Location" TEXT, "Founded" FLOAT, "Years in IIAC  ( approx. ) " TEXT, "Team Nickname" TEXT)

List the total number of institutions founded in Rock Island, Illinois.
SELECT COUNT("Founded") FROM table_22370 WHERE "Location" = 'Rock Island, Illinois'
SELECT COUNT("Founded") FROM "table_22370" WHERE "Location" = 'Rock Island, Illinois'