Oulu has always been popular among immigrants, but during the last 20 years the amount of immigrants has grown. By the end of 2013 there were over 122 different nationalities in Oulu.
Immigration statistical review 2012 (pdf), Ministry of Interior, in English
Reasons for cross-national mobility
• quota refugees
• asylum seeker
• a minor who has come to the country alone
• victim of human trafficking
Bulletin "Everyone is different, yet all are part of Oulu ", International Week Against Racism, March 2011