Ibikoresho 40 byuzuye byuzuye amatara ya pisine

dupakira ibintu byinshi buri mwaka. Nibikoresho bya kontineri ya metero 40 twasohoye vuba aha. Dufite umubano wubufatanye nibindi birenze

Ibihugu 100 kandi byamenyekanye cyane nabakiriya mu Burayi, Amerika, Uburasirazuba bwo hagati, na Aziya.