CREATE TABLE table_12241 ("Date" TEXT, "Ship" TEXT, "Nationality" TEXT, "Tonnage" FLOAT, "Fate" TEXT)

What is the highest tonnage of the ship from norway?
SELECT MAX("Tonnage") FROM table_12241 WHERE "Nationality" = 'norway'
SELECT MAX("Tonnage") FROM "table_12241" WHERE "Nationality" = 'norway'