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A newspaper's circulation is the number of copies it distributes on an average day. Circulation is one of the principal factors used to set advertising rates. Circulation is not always the same as copies sold, often called paid circulation, since some newspapers are distributed without cost to the reader. Readership figures are usually higher than circulation figures because of the assumption that a typical copy of the newspaper is read by more than one person. In many countries, circulations are audited by independent bodies such as the Audit Bureau of Circulations to assure advertisers that a given newspaper does indeed reach the number of people claimed by the publisher. In many developed countries, newspaper circulation is falling due to social and technological changes such as the availability of news on the internet. On the other hand, in some developing countries circulation is increasing as these factors are more than cancelled out by rising incomes, population, and literacy. == World newspapers with the largest circulation == The World Association of Newspapers and News Publishers (WAN-IFRA) publishes a list of newspapers with the largest circulation. In 2011, India led the world in terms of newspaper circulation with nearly 330 million newspapers circulated daily.〔(【引用サイトリンク】title=Print Media grows by 6.25%; Urdu at No. 3 )〕 In 2005, China topped the list in term of total newspaper circulation with 93.5 million a day, India came second with 78.8 million, followed by Japan, with 70.4 million; the United States, with 48.3 million; and Germany, with 22.1 million. Around 75 of the 100 best selling newspapers are in Asia and seven out of top ten are Japanese newspapers.〔(【引用サイトリンク】title=World Association of Newspapers )〕 The Japanese ''Yomiuri Shimbun'', ''Asahi Shimbun'' and ''Mainichi Shimbun'' are still the largest circulated newspapers in the world. ''The Times of India'' is the largest circulated English-language daily newspaper in the world, across all formats (Broadsheet, Compact, Berliner and Online). ''Reference News'' (參考消息) is the most popular paper in China. The largest circulated newspapers from the United States are the ''Wall Street Journal'' and ''USA Today'', the latter having eclipsed the former for a period of years; but according to its own press kit, the circulation of ''USA Today'' declined by 3 million in 2009 alone, leaving ''WSJ'' on top again. According to the Guinness Book of Records, the daily circulation of the Soviet newspaper ''Komsomolskaya Pravda'' exceeded 21,500,000 in 1990, while the Soviet weekly ''Argumenty i Fakty'' boasted a circulation of 33,500,000 in 1991. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Newspaper circulation」の詳細全文を読む スポンサード リンク
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