CREATE TABLE table_72807 ("Name" TEXT, "Latitude" TEXT, "Longitude" TEXT, "Diameter  ( km ) " TEXT, "Year named" FLOAT, "Name origin" TEXT)

At a latitude of 67.5n, what is the diameter?
SELECT "Diameter (km)" FROM table_72807 WHERE "Latitude" = '67.5N'
SELECT "Diameter (km)" FROM "table_72807" WHERE "Latitude" = '67.5N'