Bermuda
total: 39.2 years
male: 38.3 years
female: 40.1 years (2004 est.)
Bhutan
total: 20.2 years
male: 20 years
female: 20.3 years (2004 est.)
Bolivia
total: 21.1 years
male: 20.4 years
female: 21.8 years (2004 est.)
Bosnia and Herzegovina
total: 35.9 years
male: 35.5 years
female: 36.2 years (2004 est.)
Botswana
total: 19.2 years
male: 18.5 years
female: 19.9 years (2004 est.)
Brazil
total: 27.4 years
male: 26.7 years
female: 28.2 years (2004 est.)
British Virgin Islands
total: 30.9 years
male: 31.1 years
female: 30.7 years (2004 est.)
Brunei
total: 26.7 years
male: 27.3 years
female: 26 years (2004 est.)
Bulgaria
total: 40.5 years
male: 38.4 years
female: 42.4 years (2004 est.)
Burkina Faso
total: 16.8 years
male: 16.4 years
female: 17.2 years (2004 est.)