Population
12,563,212
note: includes an estimated 1,606,079 non-nationals; the 17 December 1995 census presents a total population figure of 2,377,453, and there are estimates of 3.44 million for 2002 (July 2005 est.)

Age structure
0-14 years: 25.3% (male 331,269; female 317,977)
15-64 years: 71.1% (male 1,115,826; female 707,058)
65 years and over: 3.6% (male 66,404; female 24,678) (2005 est.)

Median age
total: 27.9 years
male: 35.2 years
female: 22.9 years (2005 est.)

Population growth rate
1.54% (2005 est.)

Birth rate
18.78 births/1,000 population (2005 est.)

Death rate
4.26 deaths/1,000 population (2005 est.)

Net migration rate
0.84 migrant(s)/1,000 population (2005 est.)

Sex ratio
at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.58 male(s)/female
65 years and over: 2.691 male(s)/female
total population: 1.442 male(s)/female (2005 est.)