CREATE TABLE table_76361 ("Date" CLOB, "Name of ship" CLOB, "Flag" CLOB, "Tonnage" FLOAT, "Fate" CLOB)

What is the average tonnage of the ship named proletarij?
SELECT AVG("Tonnage") FROM table_76361 WHERE "Name of ship" = 'proletarij'
SELECT AVG("Tonnage") FROM "table_76361" WHERE "Name of ship" = 'proletarij'