In millions. Comparison of the population per square kilometre. United Nations Population Division.
“I was born in what was then called Ruanda-Urundi. In 1941 there were around two million inhabitants. Fifty-three years later, when my boyhood friend Husi and his Belgian wife were slaughtered along with 800,000 others in the Rwanda genocide, there were nearly eight million people in that landlocked and resource-poor country. Population, poverty and violence are connected. While the GDP of Rwanda, like other African countries, had actually increased somewhat, the enormous increase in population meant that per-person share of land, their only real source of wealth, had declined dramatically.”
John Guillebaud (Emeritus Professor of Family Planning and Reproductive Health University College London)
Letter to The Times 16 May 2005