Duncan Craig, Chappell Roma, Smith Jonathan, Clark Liz, Ambrose Francesca
Popul Trends. 2002 Autumn(109):9-14.
The ONS produces mid-year population estimates annually, which are based on updating from the most recent census. Therefore, whenever results become available from a census, a new base is created for the population estimates. This has implications for historic series, which need to be revised to be consistent with both the past and the most recent census. This article describes the methodology that will be used for this rebasing of the mid-year population estimates following the availability of results from the 2001 Census. Census results also provide a unique opportunity to assess the accuracy of the population estimates that are based on the previous census and this article also describes the approach that will be taken to the assessment of accuracy.
国家统计局（ONS）每年都会编制年中人口估计数，这些估计数是基于对最新人口普查数据的更新得出的。因此，每当人口普查结果公布时，就会为人口估计数建立一个新的基数。这对历史数据序列有影响，需要对其进行修订，使其与过去和最新的人口普查数据保持一致。本文介绍了在2001年人口普查结果公布后，用于重新调整年中人口估计数基数的方法。人口普查结果还提供了一个独特的机会，来评估基于上一次人口普查得出的人口估计数的准确性，本文也描述了将采用的准确性评估方法。
