Migration flows recorded in the Slovak Republic have remained relatively small. According to the Slovak Statistical Office, the migration inflow decreased from 5 400 persons in 2012 to 5 100 in 2013, while the outflow increased from 2 000 persons in 2012 to 2 800 in 2013. As a result, net immigration contracted to 2 300. Incoming migrants mainly originated from the Czech Republic (1 100 persons), the United Kingdom (600) and Hungary (400); the migration outflow was directed primarily to the Czech Republic (900), Austria (600) and the United Kingdom (300). America and Asia together accounted for 500 incoming and 200 outgoing migrants. However, these figures are based on recorded changes of permanent address and appear to underestimate the true migration flows considerably.