Table 6.1: Long-term emigration by citizenship status (flows)

UNECE Clearing House on Migration Statistics is a platform for data exchange on migration statistics for countries of Eastern Europe, Caucasus and Central Asia (EECCA) established with the purpose of improving the understanding migration processes and the systems of measuring migration in the region. The data are presented as submitted by national statistical offices.
For more information about the methodology of producing statistics on international migration in EECCA region, please refer to the UNECE Handbook on the Use of Administrative Sources and Sample Surveys to Measure International Migration in CIS Countries and the documentation of UNECE Workshops on Migration Statistics.
Definition: Unless noted otherwise, an international migrant is defined as any person who changes his or her country of usual residence. A long-term migrant is a person who moves to a country other than that of his or her usual residence for a period of at least a year. A short-term migrant is a person who moves to a country other than that of his or her usual residence for a period of at least 3 months but less than a year.

Country: Armenia

Data source: 2011 - population and housing census; 2015 and onwards - population register.

Country: Azerbaijan

Data indicate the number of persons who obtained an exit permit in Azerbaijan. Azer citizens are not included in the total number.
Data source: exit permits.

Country: Belarus

Data source: residence permits.

Country: Georgia

From 2013, long-term migration refers to those who have left or moved to Georgia for at least 6 months.
Data source: 2002 - population and housing census; 2012 and onwards - border cards.

Country: Kyrgyzstan

Data source: administrative source.

Country: Moldova, Republic of

Data source: population register.

Country: Russian Federation

2012 break in series: the Russian Federation introduced a new methodology for estimating emigration. From 2012 onwards, the source of data on international migration (long-term emigration) is registration at the place of residence and at the place of stay for a period of 9 months or more.
Data source: administrative source.

Country: Ukraine

Data source: administrative source.

Country: Uzbekistan

Data from 2011 to 2014 include internal migrants within Uzbekistan.
Data source: administrative source.

UNECE 移民统计信息交换所（UNECE Clearing House on Migration Statistics）是面向东欧、高加索与中亚（EECCA）国家的移民统计数据交换平台，旨在提升该区域对移民进程及移民测度体系的认知水平。所有数据均由各国国家统计机构提交后发布。

如需了解EECCA区域国际移民统计编制方法的更多信息，请参阅《联合国欧洲经济委员会独联体国家国际移民统计行政数据源与抽样调查应用手册（UNECE Handbook on the Use of Administrative Sources and Sample Surveys to Measure International Migration in CIS Countries）》及联合国欧洲经济委员会移民统计研讨会相关文件。

定义：除非另有说明，国际移民指任何变更其常住国的个人。长期移民指为居住而迁移至常住国以外的国家，且停留时长至少为1年的个人。短期移民指为居住而迁移至常住国以外的国家，且停留时长至少为3个月但不足1年的个人。

国家：亚美尼亚
数据来源：2011年为人口与住房普查；2015年及以后为人口登记系统。

国家：阿塞拜疆
本次统计数据为在阿塞拜疆境内取得出境许可的人员数量，且不将阿塞拜疆公民纳入总统计范畴。数据来源：出境许可登记数据。

国家：白俄罗斯
数据来源：居留许可登记。

国家：格鲁吉亚
自2013年起，长期移民指为抵达或离开格鲁吉亚且停留时长至少为6个月的人员。数据来源：2002年为人口与住房普查；2012年及以后为边境登记卡。

国家：吉尔吉斯斯坦
数据来源：行政数据源。

国家：摩尔多瓦共和国
数据来源：人口登记系统。

国家：俄罗斯联邦
2012年出现序列断点：俄罗斯联邦引入了全新的移民出境估算方法。2012年及以后，国际移民（长期出境移民）的数据来源为居留地与停留地登记（停留时长9个月及以上）。数据来源：行政数据源。

国家：乌克兰
数据来源：行政数据源。

国家：乌兹别克斯坦
2011年至2014年的数据包含乌兹别克斯坦境内的国内移民。数据来源：行政数据源。