| Rank | Country | Median age |
108 | Azerbaijan | total: 28.8 years
male: 27.2 years
female: 30.6 years (2011 est.) |
95 | Bahamas, The | total: 30.2 years
male: 29.1 years
female: 31.3 years (2011 est.) |
87 | Bahrain | total: 30.9 years
male: 32.2 years
female: 28.1 years (2011 est.) |
152 | Bangladesh | total: 23.3 years
male: 22.7 years
female: 23.7 years (2011 est.) |
62 | Barbados | total: 36.5 years
male: 35.4 years
female: 37.6 years (2011 est.) |
45 | Belarus | total: 39 years
male: 36.1 years
female: 42.1 years (2011 est.) |
13 | Belgium | total: 42.3 years
male: 41 years
female: 43.6 years (2011 est.) |
177 | Belize | total: 21 years
male: 20.8 years
female: 21.2 years (2011 est.) |
213 | Benin | total: 17.4 years
male: 17 years
female: 17.9 years (2011 est.) |
15 | Bermuda | total: 42 years
male: 40.4 years
female: 43.5 years (2011 est.) |
142 | Bhutan | total: 24.8 years
male: 25.4 years
female: 24.2 years (2011 est.) |
160 | Bolivia | total: 22.5 years
male: 21.8 years
female: 23.2 years (2011 est.) |
26 | Bosnia and Herzegovina | total: 40.7 years
male: 39.6 years
female: 41.9 years (2011 est.) |
163 | Botswana | total: 22.3 years
male: 22.2 years
female: 22.4 years (2011 est.) |
| Bouvet Island | void |
107 | Brazil | total: 29.3 years
male: 28.5 years
female: 30.1 years (2011 est.) |
| British Indian Ocean Territory | void |
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