CREATE TABLE table_55010 ("Date" TEXT, "Ship" TEXT, "Type" TEXT, "Nationality" TEXT, "Tonnage GRT" FLOAT)

What is the total Tonnage GRT with a Type of cargo ship, and a Nationality of norway?
SELECT SUM("Tonnage GRT") FROM table_55010 WHERE "Type" = 'cargo ship' AND "Nationality" = 'norway'
SELECT SUM("Tonnage GRT") FROM "table_55010" WHERE "Nationality" = 'norway' AND "Type" = 'cargo ship'