New method of collecting data on migration
The Statistical Office of the
Republic of
Slovenia publishes data on migration for total population of
Slovenia as of 1 January 2011 for the first
time on the basis of administrative and statistical sources. So far data on
migration and migration history for total population have been collected only by
conventional (field) censuses (the last one with the reference date of 31 March
2002).
In the scope of migration topics we are publishing data on:
· Country/place of birth (place of usual residence at the time of birth in
Slovenia or in a foreign country)
· Previous
place of usual residence and date of arrival in the current place (settlement in
Slovenia or a foreign country)
· Residing
abroad (country of emigration and the year of arrival to Slovenia).
Data sources on migration
The Statistical Office of the
Republic of
Slovenia used 4 sources of data for preparing the
data on migration:
· 2002
Population Census
·
Annual
statistical survey on migration (data from 2002 to 2010)
· Annual
statistical survey on birth (data from 2002 to 2010)
· Quarterly
statistical survey on population, as of 1 January 2010
Due to methodological differences for specific migration topics, the statistical
process has been adapted for each topic separately. The basic methodological
principle is the hierarchy of the sources. In case of availability of data for
the same person in several sources, the priority is given to the source
indicated with higher priority or in case of more than one record for the same
person in the same source (valid only for statistical survey on migration), the
priority is given to the methodologically adequate data. Migration by definition
means the change of settlement of usual residence.
Country/place of birth
Data on country/place of birth for persons residing in
Slovenia on 31 March 2002 has been taken from
the 2002 Population Census. For persons born in
Slovenia on 1 April 2002 and later the place of
birth is the first registered residence after birth. For persons who immigrated
to Slovenia after 1 April 2002 the country of birth is equal to the country of
emigration at the time of first immigration to Slovenia or according to the
international recommendations the country of birth (data on de facto country of
birth taken from Central Population Register) if data were not available in any
data source
Previous place of usual residence
Data on previous place of usual residence are by priority taken from the annual
statistical survey on migration. As migration is a repeated demographic event (a
person can change the place of usual residence several times even in the same
year), the priority rule of last adequate migration was applied. Besides, we
consider the data on usual residence one year before from the quarterly
statistical survey on population (in case the settlements of residence were not
the same as of 1 January 2010 and as of 1 January 2011). For persons who
migrated for the last time before 2002, data were taken from the 2002 Population
Census
Residing abroad
Data on persons ever residing abroad are derived from data on country of birth
and from data on foreign country of previous place of usual residence. In case
of several international moves, the calendar year of most recently established
usual residence in the country is taken into account.
Two sources by priority rule were used:
1. Annual statistical survey on migration (data from 2002 to 2010)
2. 2002 Population Census
For persons with foreign country of birth the country of residing abroad is:
· Country of
birth if the immigration to
Slovenia was the last international migration;
· Previous
country of usual residence in the case of two or more international migrations.
For residents with the place of birth in
Slovenia (return migrants) the previous country
of usual residence is the country of residing abroad.
Data editing
Statistical methods (imputation, automated corrections) were also used to improve
quality and consistency of data.