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.
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