Nata ihe ruru 50% kwụsịrị niile ịzụrụ
Ugbu a enwere koodu dere 0, nkwekọrịta 13, na nkwalite mbupu n'efu 2. Site na mbelata ego dị 20%, ndị na -azụ ahịa nwere ike nweta nkwalite dị egwu ruo 30% kwụsịrị. Nkwalite kachasị dị ugbu a bụ 30% anya site na "agbakwunyere 20% gbanyụọ saịtị niile + Mbupu n'efu".
Gosi Usoro Koodu