Report of the Secretary-General SUMMARY According to the schedule for follow-up , monitoring and evaluation of the United Nations New Agenda for the Development of Africa in the 1990s ( UN-NADAF ) , adopted by the General Assembly in its resolution 46/151 of 18 December 1991 and contained in annex II thereto , the Economic and Social Council would devote part of its high-level segment to the consideration of the implementation of the New Agenda .