Belgium
total: 41.4 years
male: 40.2 years
female: 42.7 years (2008 est.)
Belize
total: 20.1 years
male: 20 years
female: 20.3 years (2008 est.)
Benin
total: 17.1 years
male: 16.7 years
female: 17.6 years (2008 est.)
Bermuda
total: 41 years
male: 40.1 years
female: 41.8 years (2008 est.)
Bhutan
total: 23.5 years
male: 24.1 years
female: 22.8 years (2008 est.)
Bolivia
total: 22.6 years
male: 21.9 years
female: 23.3 years (2008 est.)
Bosnia and Herzegovina
total: 39.4 years
male: 38.2 years
female: 40.5 years (2008 est.)
Botswana
total: 21.2 years
male: 21 years
female: 21.4 years (2008 est.)
Brazil
total: 28.3 years
male: 27.5 years
female: 29 years (2008 est.)
British Virgin Islands
total: 32 years
male: 32.1 years
female: 31.9 years (2008 est.)