International Passenger Survey, 2012

The <i>International Passenger Survey</i> (IPS) aims to collect data on both credits and debits for the travel account of the Balance of Payments, provide detailed visit information on overseas visitors to the United Kingdom (UK) for tourism policy, and collect data on international migration.<br> The data cover four subject areas, termed 'Airmiles', 'Alcohol', 'Qregtown' and 'Qcontact'. One file is produced each quarter per subject area, and the dataset updated quarterly. These files can be joined together using the variables YEAR, SERIAL, FLOW and QUARTER.<br> <br> The depositor recommends that only expert users who are very familiar with the coding and weighting structures use these data, as limited support is available. Some considerable understanding of the data is required before meaningful analyses can be made; care must be taken when performing time series operations as codes can vary from year to year and not all variables from one year's dataset are used in other years. <br> <br><p><span style="font-weight: bold;">Latest edition information</span></p><p>For the seventh edition (June 2022), a revised Qcontcust 2009-2019 data file was added to the study. It includes the additional sampling design variables shiftWeight, NonRespWeight, minimumsWeight, sampTrafficWeight, unsampTrafficWeight, OLD_imbalanceWeight, shiftWeightgrp, NRWeightgrp, minsWeightgrp, sampTrafficWtgrp, UnsampwgtPortgrp and UnsampwtRegiongrp. The data file includes all years from 2009-2019 and users will need to filter the data by year to see cases for individual years.<br></p>

**国际旅客调查（International Passenger Survey，IPS）** 旨在采集国际收支旅游账户的借贷方数据，为英国旅游政策制定提供赴英海外访客的详细出行信息，并采集国际移民相关数据。
该数据集涵盖四大主题域，分别为「航空里程（Airmiles）」、「酒类（Alcohol）」、「Qregtown」以及「Qcontact」。每个主题域每季度生成一份独立数据文件，数据集整体亦按季度更新。可通过YEAR、SERIAL、FLOW与QUARTER四个变量实现多文件的关联合并。

数据提交者建议，仅对编码与权重结构十分熟悉的专业用户方可使用本数据集，因官方可提供的技术支持较为有限。开展具有实际价值的分析前，需对本数据集具备充分的认知；进行时间序列操作时需格外审慎，编码规则可能随年份变动，且某一年份数据集所包含的部分变量，未必会在其他年份的数据集内出现。

**最新版本说明**
在2022年6月发布的第7版中，本数据集新增了经修订的2009-2019年Qcontcust数据文件。该文件新增了如下抽样设计相关变量：shiftWeight、NonRespWeight、minimumsWeight、sampTrafficWeight、unsampTrafficWeight、OLD_imbalanceWeight、shiftWeightgrp、NRWeightgrp、minsWeightgrp、sampTrafficWtgrp、UnsampwgtPortgrp以及UnsampwtRegiongrp。该数据文件涵盖2009至2019年的全部数据，用户需按年份对数据进行筛选，方可查看单一年份的样本案例。