CREATE TABLE table_5853 ("Designation" CLOB, "Car numbers" CLOB, "Manufacturer" CLOB, "Model No." CLOB, "First used" CLOB, "Quantity" FLOAT)

Which Quantity has a Designation of type 4?
SELECT AVG("Quantity") FROM table_5853 WHERE "Designation" = 'type 4'
SELECT AVG("Quantity") FROM "table_5853" WHERE "Designation" = 'type 4'