Table 4.

Annual number of malaria cases attributable to small and large dams in Volta, Limpopo, Zambezi and Omo-Turkana Basins in Africa.

	Annual number of malaria cases attributable to dams
	2000		2005		2010		2015
	Small dams	Large dams	Small dams	Large dams	Small dams	Large dams	Small dams	Large dams
Volta
Stable	818,535	92,400	678,535	105,571	1,000,658	141,235	83,352	224,187
Unstable	–	–	–	–	–	–	–	–
Limpopo
Stable	140,914	17,332	129,699	16,597	117,861	10,356	60,668	13,793
Unstable	12,275	9089	13,344	10,680	7608	6915	9248	11,039
Zambezi
Stable	446,108	1348	209,392	4285	226,143	6708	242,372	5793
Unstable	124,453	4187	164,862	6613	127,273	12,712	195,498	18,706
Omo-Turkana
Stable	1899	1594		1137	–	–	–	–
Unstable	5846	39,807	8846	42,878	13,621	30,334	5270	56,033
TOTAL	1,550,030	165,757	1,204,678	187,761	1,493,164	208,260	596,408	329,551