Residential Variation Statistics (RVS) are compiled by the INE from information regarding registrations and delistings due to changes of residence registered in the Municipal Registers, with variation dates from the reference year.
Migratory movement refers to the displacement of an individual due to a change in residence, as well as the characteristics of this migration. The information contained comprises only inter-municipal changes and, as such, changes in residence within the same municipality are excluded.
Yearly residential variation statistics do not refer to the number of people changing residence, but rather to the number of changes made, as a citizen may change residence from one municipality to another more than once a year.
Exterior immigration data is compiled exclusively from municipal registrations of people who have arrived from abroad. Exterior immigration data for the years 2001, 2002 and 2003 have not been published due to a lack of exhaustive data (these population flows tended to be incorporated directly into the Continuous Municipal Register as entries lacking previous registrations). Exterior immigration flow is published again from 2004 onwards as the total number of movements was reasonably exhaustive, even though there is an elevated number of cases where the destination country information is missing.
The external emigration series begins in 2005, the year in which the data, once analysed, is more consistent, even though there is still a large number of cases missing the destination country information.
From 2006 onwards, delistings from the Municipal Register due to expiry are included. These delistings are included as a result of the legislative change to the 7/1985 Organic Law, which regulates Local Ordinances, introduced in the 14/2003 Law on Foreign Nationals, which states that foreigners from outside the European Union must renew their registration on the Municipal Register every two years. If they do not renew, city councils must declare their registration as expired.
At present, Catalonia is divided into 41 counties, 1 singular territorial entity (Aran) and 8 areas of the Territorial Plan, according to the latest territorial changes, which affect the areas of El Penedès and the Central Counties, Aran and El Moianès.
Unavailable information is represented using the symbol ":". When the value is lower than that of the minimum unit to be able to estimate the statistical operation or if it effects statistical confidentiality, the symbol used is "..".