The Estonian population was estimated at 1.35 million on 1st January 2015, a 0.3% decline on the year before. Registered foreign nationals accounted for 16% (212 500 persons) of the total population. Around 89% were non-EU/EFTA nationals, of whom Russians comprised 43% (92 300 persons). Persons with undetermined citizenship (mostly long-standing migrants who came from different parts of the Soviet Union prior to 1991, and their descendants) accounted for another 40% (85 300) followed by Ukrainian nationals (6 300 persons). The majority of EU/EFTA migrants residing in Estonia were nationals of the neighbouring EU countries Finland (27%) and Latvia (16%), followed by German nationals (10%).