The statistics for 2011 record an increase by 8,922 in the number of citizens of Kosovo, and at the same time a decrease by 10,386 in the number of citizens of Serbia. This does not reflect any real population movement, but the registrations as citizens of Kosovo by Albanians who were formerly registered as Serbian citizens. As of 2009, nationals of successor states of Yugoslavia are registered as follows:  By 1995, there were 40,000 Macedonian citizens in Switzerland. This number has risen further to 61,000 by 2002. This increase does not necessarily reflect immigration, but rather re-registration of formerly Yugoslav citizens as Macedonian nationals. An estimated 50,000 emigrants from North Macedonia are Albanians from North Macedonia. Since Kosovo began to issue passports in 2009, an increasing number of Albanians in Switzerland have since been registered as citizens of Kosovo. The number of foreign residents from former Yugoslavia naturalized as Swiss citizens in 2009 was at 14,780 (Serbia, Montenegro and Kosovo: 8,879; Bosnia and Herzegovina: 2,408; North Macedonia: 1,831; Croatia: 1,599; Slovenia: 63). This corresponds to one third of the total number of naturalizations during this year. In 2010, out of a total of 40,403 naturalizations, 13,440 were accounted for by citizens of successor states of Yugoslavia, again corresponding to one third of the total number (Serbia: 6,843, Bosnia and Herzegovina: 1,924; Kosovo 1,609; North Macedonia: 1,585; Croatia: 1,479). In terms of ethnicity, these populations consist mostly of Albanians, Bosniaks, Serbs, Croats and ethnic Macedonians. The size of each group is unknown and only amenable to rough estimates. An indicator of ethnicity can be taken from data on languages spoken in Switzerland. Unfortunately, the latest data on this was collected in the 2000 census. At that time, there were 103,000 native speakers of Serbo-Croatian, 95,000 speakers of Albanian and 61,300 speakers of Macedonian. Estimates on the actual ethnic composition of former Yugoslav immigrants in Switzerland are mostly left to ethnic cultural organizations. They cannot be expected to have better than single-digit accuracy, but nevertheless give an overview of the general situation; such estimates amount to roughly 250,000 Albanians, 150,000 Serbs, 80,000 Croats and 10,000 Macedonians. The number of Slovenians in Switzerland is much smaller, well within the four-digit range.