0-14 years: 41.4% (male 2,473,486 /female 2,435,139) 15-24 years: 19.23% (male 1,145,488 /female 1,134,103) 25-54 years: 30.8% (male 1,827,246 /female 1,824,162) 55-64 years: 4.72% (male 269,995 /female 289,164) 65 years and over: 3.85% (male 203,754 /female 252,874) (2018 est.)