Over 200 ethnic groups populate the Democratic Republic of the Congo, of which the majority are Bantu peoples. Together, Mongo, Luba and Kongo peoples (Bantu) and Mangbetu-Azande peoples constitute around 45% of the population.
Health problems have been a long standing issue limiting development in the Democratic Republic of the Congo (DR Congo).
After a four-year interlude between two constitutions, with new political institutions established at the various levels of government, as well as new administrative divisions for the provinces throughout the country, a new constitution came into effect in 2006 and politics in the Democratic Republic of the Congo finally settled into a stable presidential democratic republic. The 2003 transitional constitution had established a parliament with a bicameral legislature, consisting of a Senate and a National Assembly.