Chart of Mali population by regions (1998 vs. 2009)

We can view a general increase of population:

Reference 1: Kayes, Koulikoro, Bamako Capital District, Sikasso, Ségou, Mopti, Tombouctou (Timbuktu), Gao, Kidal and Ménaka.

Reference 2: Area (km2), Population Census 1998 and Population Census 2009.

Source: http://en.wikipedia.org/wiki/Mali