Umuryango w'ubufatanye mu bukungu n'iterambere wa Organization for Economic Cooperation and Development (OECD), wagaragaje ko Umunyamerika akoresha ikigereranyo cy'amadorari 1200 ku mwaka agura imiti yandikiwe na muganga, kikaba ari cyo kiri hejuru cyane ku handi hose ku isi.
