2010年世界各国人口中位数年龄，供大家讨论

这个讨论非常有意思。下面是CIA所作的2010年世界主要国家人口中位数年龄的估计。非洲国家的中位数年龄都很低，这里没有列出来。这从全世界人口中位数年龄（28.4）可看出来。

Country	Median age
Japan	44.6
Italy	44.3
Germany	43.7
Austria	42.6
Finland	42.3
Greece	42.2
Belgium	42.0
Sweden	41.7
Bulgaria	41.6
Spain	41.5
Switzerland	41.3
Netherlands	40.8
Canada	40.7
Denmark	40.7
United Kingdom	40.5
Czech Republic	40.4
France	39.7
Hungary	39.7
Norway	39.7
Portugal	39.7
Ukraine	39.7
Singapore	39.6
Russia	38.5
Poland	38.2
Korea, South	37.9
Australia	37.5
New Zealand	36.8
United States	36.8
China	35.2
Korea, North	33.9
Thailand	33.7
Chile	31.7
Argentina	30.3
Tunisia	29.7
Brazil	28.9
World	28.4
Turkey	28.1
Indonesia	27.9
Iran	27.6
Vietnam	27.4
Mexico	26.7
India	25.9
Egypt	24.0
Niger	15.2