CREATE TABLE table_27549 ("Order" FLOAT, "Episode" TEXT, "U.S. air date" TEXT, "Rating" TEXT, "Share" FLOAT, "Rating/Share  ( 18\\u201349 ) " TEXT, "Viewers  ( millions ) " TEXT, "Rank  ( timeslot ) " FLOAT)

What was the highest share?
SELECT MAX("Share") FROM table_27549
SELECT MAX("Share") FROM "table_27549"