Response options: Missing; Unknown, Not asked in survey, Not applicable, No answer, Don´t know, Argentina (2), Brazil (2), Belarus (2), Chile (2), China (2), Czech Republic (2), India (2), Japan (2), South Korea (2), Mexico (2), Nigeria (2), Poland (2), Russian Federation (2), Slovakia (2), South Africa (2)
Response options: Missing; Unknown; Inappropiate, Not asked, Not applicable, No answer, Don´t know, Town you live in, A region of the Russian republic, Russia as a whole, Soviet Union as a whole, Europe, The world as a whole, Did not state
