Evidence comes from a little-noticed survey published by the US Census Bureau in September.

Who the U.S. Census Bureau designated "colored" or "black" varied, too, before and after slavery, and at times including subcategories for people of mixed race, all details often left up to the whims of the census taker.

在奴隶制废除之前和之后，美国人口普查局（U.S.Census Bureau）认定的“有色人种”和“黑人”也各不相同，有些时期还包括针对混血儿的小类，所有细微之处往往是由人口普查员随意决定的。

The Census Bureau has a program that permits elected officials to challenge the numbers, but it does not apply to changing the districts or the seats in Congress.

人口普查局（Census Bureau）有一个项目，允许民选官员质疑这些数字，但它无法改变选区或国会席位。

Nicholas Jones is a Census Bureau official.

尼古拉斯·琼斯（Nicholas Jones）是人口普查局的官员。

Of course, women in general are starting families later than they did in the past, using the extra years to finish their education or build a career, the Census Bureau says.

当然，据美国人口普查局（Census Bureau）称，现在女性组建家庭的时间一般比过去晚，她们用更多时间来完成教育或开创事业。

The United States Census Bureau does not expect that to happen until March.

美国人口普查局预计到明年三月才会达到这一数字。

A link to further data provided by the Bureau rounds off the site.

此外，还可以通过这个网页链接到美国人口普查局所提供的其他数据。

College graduates generally receive bigger salaries, on average earning$ 20,000 more a year than workers without higher education, according to the Census Bureau.

美国人口普查局（Census Bureau）的数据显示，大学毕业生通常薪资更高，年收入比没有接受高等教育的工人平均高出2万美元。

The vast majority of older Americans have married at least once by the time they reach age 50, Census data show.

美国人口普查局（Census）的数据显示，大多数美国老年人在步入50岁时已经至少结过一次婚。

The Pew analysis of trends for stay-at-home moms is based on an analysis of data from the Census Bureau's Current Population Survey.

Pew依据对美国人口普查局当期人口调查（Current Population Survey）的数据进行的分析来解析全职妈妈的趋势。

China's poverty levels for the elderly look high relative to the U.S., where the Census Bureau reports that 8.7% of those over 65 live below the poverty line.

中国老年人口的贫困率看来比美国要高。美国人口普查局（Census Bureau）的数据显示，美国65岁以上老年人口的贫困率为8.7%。

But durable goods data, tracked by the Census Bureau, is often highly volatile on a month-to-month basis, and economists tend to put more weight on other factors like employment, consumer spending and income.

不过，由美国人口普查局（Census Bureau）追踪的月度耐用商品数据，常会出现较大的环比变化，经济学家们往往更看重就业、消费者支出和收入等因素。

Today, the typical American man marries for the first time when he is 29 years old--well above the historical low of 23 in 1956, but only three years older than in 1890, according to Jonathan Vespa, a Census demographer.

美国人口普查局的人口学家韦斯帕（Jonathan Vespa）说，现在典型美国男性首次结婚的年龄是29岁，远高于1956年的历史低点23岁，但只比1890年高出三岁。

In their thirst for evidence on this issuecommentators seized on the recent report by the Census Bureau, which found that average household income rose by 5.2% in 2015.

渴望获得该问题的证据的评论员们纷纷以人口普查局最新发布的一项报告作为证明。报告显示，美国家庭平均收入在2015年提高了52%。

The US census bureau has led the way in sounding the alarm over the changes.

美国人口普查局率先对此人口老龄化敲响了警钟。

The United States imported$ 440.4 billion worth of Chinese goods last year and exported just$ 121.7 billion to China, according to the Census Bureau.

根据美国人口普查局（Census Bureau）公布的数据，去年，美国从中国进口了总价值4404亿美元的商品，但仅向中国出口了1217亿美元。

In a report on the status of families, the Census Bureau on Tuesday said 13.6% of Americans ages 25 to 34 were living with their parents in 2012, up slightly from 13.4% in 2011.

美国人口普查局（Census Bureau）周二发布的有关家庭状况的报告说，2012年25岁至34岁的美国人中，有13.6%与父母住在一起，略高于2011年的13.4%。

Among the more significant problems with the Census's measure are that.

人口普查局的衡量依据存在的比较严重的问题有。

Median household income in the United States in 2012 was$ 51017, according to Census Department data.

美国人口普查局（Census Department）的数据显示，2012年美国家庭收入中值为51017美元。

More than 75% of commuters travel alone by car, Census data show.

美国人口普查局（Census）数据显示，单独开车上下班的通勤者占75%以上。

The latest US Census Bureau statistics show that textbook prices increased more than 800 per cent from 1978 to 2014, more than triple the cost of inflation and more than the rate of increase of college tuition.

根据美国人口普查局（US Census Bureau）的最新数据，从1978年到2014年，教科书价格上涨幅度超过800%，是通胀速度的3倍多，超过了大学学费的增速。