Particle Swarm Optimization Algorithm for Optimizing Assignment of Blood in Blood Banking System

Table 2

Proportion of blood types in South Africa².

Blood type	A^+	A^−	B^+	B^−	C^+	C^−	O^+	O^−
Proportion (%)	32	5	12	2	3	1	39	7

Source: South African National Blood Service—http://www.sanbs.org.za/index.php/donors/what-s-your-type.