In China, there is an ethnic population of 30,500 but only 19,000 are fluent in Evenki and only around 3,000 people are monolingual in Evenki. Juha Janhunen investigated multilingualism in Hulunbuir (northern Inner Mongolia) and the adjoining section of Heilongjiang (e.g. Qiqihar) in 1996. He found that most Solons still spoke Evenki, and about half knew the Daur language as well. Furthermore, Mongolian functioned as a "lingua franca" among members of all minority groups there, as they tended to do their education in Mongolian-medium schools. The only Evenki-speakers whom Janhunen knew not to speak Mongolian as a second language were the Reindeer Evenki (sometimes called "Yakut") in the northern part of Hulunbuir, who used Russian as their "language of intercultural communication". Janhunen predicted that all of these languages, including Mongolian, were likely to lose ground to Chinese in coming years. However Chaoke noted more than a decade later that the usage rate of Evenki remained quite high, and that it was still common to find Evenki speakers who were proficient in three, four, or even five languages.