CREATE TABLE table_37546 ("Name" CLOB, "Length" CLOB, "Tonnage" FLOAT, "Built by" CLOB, "Year" FLOAT, "Engines" CLOB, "Horsepowers" FLOAT, "Former Names" CLOB)

How many Horsepowers have a Year smaller than 1974, and a Tonnage of 4437?
SELECT SUM("Horsepowers") FROM table_37546 WHERE "Year" < '1974' AND "Tonnage" = '4437'
SELECT SUM("Horsepowers") FROM "table_37546" WHERE "Tonnage" = '4437' AND "Year" < '1974'