Bahrain
0-14 years: 25.9% (male 95,224/female 93,241)
15-64 years: 70.2% (male 292,941/female 217,729)
65 years and over: 3.9% (male 15,106/female 13,544) (2009 est.)
Bangladesh
0-14 years: 34.6% (male 27,065,625/female 26,913,961)
15-64 years: 61.4% (male 45,222,182/female 50,537,052)
65 years and over: 4% (male 3,057,255/female 3,254,808) (2009 est.)
Barbados
0-14 years: 19.2% (male 27,383/female 27,352)
15-64 years: 71.3% (male 99,829/female 103,049)
65 years and over: 9.5% (male 10,464/female 16,512) (2009 est.)
Belarus
0-14 years: 14.3% (male 707,550/female 667,560)
15-64 years: 71.3% (male 3,337,253/female 3,540,916)
65 years and over: 14.5% (male 446,746/female 948,508) (2009 est.)
Belgium
0-14 years: 16.1% (male 857,373/female 822,303)
15-64 years: 66.3% (male 3,480,072/female 3,419,721)
65 years and over: 17.6% (male 760,390/female 1,074,477) (2009 est.)
Belize
0-14 years: 37.9% (male 59,462/female 57,117)
15-64 years: 58.6% (male 91,298/female 89,170)
65 years and over: 3.5% (male 5,185/female 5,667) (2009 est.)
Benin
0-14 years: 45.2% (male 2,028,493/female 1,948,353)
15-64 years: 52.1% (male 2,275,662/female 2,308,945)
65 years and over: 2.6% (male 94,569/female 135,810) (2009 est.)
Bermuda
0-14 years: 18.3% (male 6,271/female 6,163)
15-64 years: 67.5% (male 22,555/female 23,215)
65 years and over: 14.2% (male 3,979/female 5,654) (2009 est.)
Bhutan
0-14 years: 30.2% (male 106,410/female 102,164)
15-64 years: 64.3% (male 235,988/female 208,484)
65 years and over: 5.5% (male 20,169/female 17,926) (2009 est.)
Bolivia
0-14 years: 35.5% (male 1,767,310/female 1,701,744)
15-64 years: 60% (male 2,877,605/female 2,992,043)
65 years and over: 4.5% (male 193,196/female 243,348) (2009 est.)