1·A Norwegian demographer, Henrik Urdal, reckons a country's risk of conflict rises four percentage points for every one-point increase in the youth population.
挪威人口统计学家亨利克•厄达尔认为，一个国家的年轻人口每增长一个百分点，其发生冲突风险的几率就会提高4个百分点。
2·One demographer has said the 300 millionth person would likely be a Latino boy given current U.S. population trends.
美国一位人口统计学家曾说，从目前美国的人口走势来看，这第三亿个人可能会是一个拉丁裔男婴。
3·Brookings Institute demographer William Frey notes that the current economic downturn may have actually given these median income levels a boost.
布鲁斯金学会人口统计学家威廉，弗利表示，当前的经济不景气可能真的已经给这些收入中值水平一个提升。