自此之后，中国老年人加小孩占总人口的比例开始下降，老年人口比重正大幅提高。
The ratio of elders and children to total population drops since then as the number of senior citizens sharply rises.
根据美国人口普查局预测，到2050年西班牙语系的美国人占总人口的比例将翻番至30%。
According to Census Bureau projections, by 2050 Hispanic Americans' share of the population will double to 30 percent.
而目前，60岁以上老龄人口占总人口的比例已从2000年的10.4％上升到现在的13.3％。
Already, the proportion of people aged over 60 has increased from 10.4% in 2000 to 13.3% now.
美国人口普查局说，美国贫困人口去年占总人口的比例是14.3%，比2008年将近高出整整一个百分点。
People living in poverty in the United States in 2009 was 14.3 percent, according to the Census Bureau, nearly a full percentage point higher than the previous year.
2000年14岁以下青少年儿童占总人口的比例：22.9% 3.2010年60岁以上老人占总人口比例： 13.3%
Percentage of population 14 years-old and younger in 2010: 16.6% Percentage of population 14 years-old and younger in 2000: 22.9%3.
日本是全球老龄化速度最快的国家之一。据日本政府预测，截至2050年，日本65岁以上的老年人占总人口的比例将达40%。
Japan has one of the world's fastest-ageing societies and the government predicts that by 2050 the proportion of people over 65 will reach 40 percent.
在人口仍然年轻化的美国，它目前占总人口增长的40%，而在快速老龄化的西欧，这一比例约为90%。
In still-fertile America it currently accounts for about 40% of total population growth, and in fast-ageing western Europe for about 90%.
到2030年，单身人士将在英国总人口中占45%的比例，而目前的比例大约是三分之一。
By 2030, singles will account for 45% of the UK population compared with around one-third currently.
在许多国家，长期失业人群的绝对数和占失业总人口的比例都出现了急剧的上升。
In many countries long-term unemployment has soared both in absolute terms and as a proportion of total joblessness.
密西西比州既不缺少黑人也不缺少黑人民选官员：该州农民占总人口比例较高（37%），农民的总量居于第二。
THE state of Mississippi lacks neither black people nor black elected officials: it has a higher percentage of the former (37%) and more of the latter than any state in the union.
目前，上海市的未婚人口占15岁以上总人口的21.4%，而市区的这一比例则达到了24.3%。
The city's unmarried now constitute 21.4 percent of the total population over the age of 15, with the percentage growing to 24.3 in the downtown area.
上世纪20年代，美国人摄入的果糖量是现在的三分之一，而肥胖症人群只占总人口的5-7％，而如今肥胖人群比例已上升至30％。
In the 1920s, when obesity rates were 5 to 7 percent of the population instead of the approximately 30 percent they are today, Americans ate about a third the fructose they now do.
2007年，占总人口9%的白人获得了42%的学位。虽然黑人获得的比例也大致相当，但他们的总数却有白人的10倍之多。
Whites, who account for 9% of the population, gained 42% of the degrees awarded in 2007, almost exactly the same proportion as blacks, who are nearly ten times more numerous.
这种情况会带来一个不利的后果，随着退休者占国家总人口比例的升高，消费可能会降低。
The downside of this is that consumption could fall as the share of pensioners in a country's population rises.
2020年后巴西劳动年龄人口占其总人口的比例将开始下降，巴西经济若想继续保持增长，就必须提高效率。
But if Brazil is to grow beyond 2020, when the working-age population will begin to decline as a share of the total, it will have to tackle its productivity problem.
皮尤研究中心估计到2050年，这一比例将上升到29%；白人将只占少数，为总人口的47%。
By 2050, estimates the Pew Research Centre, Hispanics will be 29% of the population and whites will be a minority at 47%.
当代美国人口变动的一个显著特征就是少数族裔占全国总人口的比例不断上升，其中西班牙裔人口的增幅尤其令人瞩目。
A notable characteristics of the contemporary American population is the rapid increase of the minorities, especially the remarkable growth of Hispanic population.
广西巴马地区的百岁老人占当地总人口的比例为百万分之308，远远超出世界长寿之乡百万分之75的标准值。
The proportion of centenarian in Bama region is 308 millionths of the total population, which is far more than the 75 millionths of the world's longevity criteria.
广西巴马地区的百岁老人占当地总人口的比例为百万分之308，远远超出世界长寿之乡百万分之75的标准值。
The proportion of centenarian in Bama region is 308 millionths of the total population, which is far more than the 75 millionths of the world's longevity criteria.
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