by the Central Intelligence Agency, The World Factbook (1982) — Burundi (1982 |noyear)
“ BURUNDI LAND 28,490 km2 ; about 37% arable (about 66% cultivated) , 23% pasture, 10% scrub and forest, 30% other Land boundaries: 974 km PEOPLE Population: 4,438,000 (July 1982) , average annual growth rate 2.7% Nationality: noun—Burundian (s) ; adjective—Burundi Ethnic divisions: Africans—85% Hutu (Bantu) , 14% Tutsi (Hamitic) , 1% Twa (Pigmy) ; other Africans include around 70,000 refugees, mostly Rwandans and Zairians ”
