Bosnia and Herzegovina
0-14 years: 14.5% (male 344,760/female
323,303)
15-64 years: 70.7% (male 1,645,274/female 1,617,136)
65 years and over: 14.8% (male 279,781/female 403,160) (2009 est.)
Botswana
0-14 years: 34.8% (male 352,399/female 340,058)
15-64 years: 61.4% (male 613,714/female 608,003)
65 years and over: 3.9% (male 31,155/female 45,547) (2009 est.)
Brazil
0-14 years: 26.7% (male 27,092,880/female 26,062,244)
15-64 years: 66.8% (male 65,804,108/female 67,047,725)
65 years and over: 6.4% (male 5,374,230/female 7,358,082) (2009 est.)
British Virgin Islands
0-14 years: 19.8% (male 2,454/female 2,387)
15-64 years: 74.4% (male 9,346/female 8,881)
65 years and over: 5.8% (male 734/female 689) (2009 est.)
Brunei
0-14 years: 26.6% (male 53,282/female 50,141)
15-64 years: 70.1% (male 135,640/female 136,292)
65 years and over: 3.3% (male 6,199/female 6,636) (2009 est.)
Bulgaria
0-14 years: 13.8% (male 509,544/female 484,816)
15-64 years: 68.5% (male 2,426,060/female 2,508,772)
65 years and over: 17.7% (male 518,711/female 756,784) (2009 est.)
Burkina Faso
0-14 years: 46.2% (male 3,646,661/female 3,621,648)
15-64 years: 51.3% (male 4,025,917/female 4,054,865)
65 years and over: 2.5% (male 156,895/female 240,246) (2009 est.)
Burma
0-14 years: 25.3% (male 6,193,263/female 5,990,658)
15-64 years: 69.3% (male 16,510,648/female 16,828,462)
65 years and over: 5.4% (male 1,121,412/female 1,493,298) (2009 est.)
Burundi
0-14 years: 46.2% (male 2,087,315/female 2,063,518)
15-64 years: 51.3% (male 2,291,123/female 2,320,839)
65 years and over: 2.5% (male 89,444/female 135,852) (2009 est.)
Cambodia
0-14 years: 32.6% (male 2,388,922/female 2,336,439)
15-64 years: 63.8% (male 4,498,568/female 4,743,677)
65 years and over: 3.6% (male 197,649/female 329,038) (2009 est.)