Levada Center data, “Courier” study, representative sample N = 1628; in this case, all references to various sources of information given by the respondents was taken as 100%, and the given values indicate the relative percent of references to each source. Unlike the Levada Center, we provide aggregated data for two groups - 18-24 years old and 25-39 years old, since the first group makes up only 8% of the adult population and is not very representative in this sense.