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 Thanks to both of you. I think that the average number of national newspapers per nation (781) is way too high. Even if we include the nations not recognised by the UN, I don't think it would decrease to a more realistic figure. For example, how many national newspapers does Great Britain have? I don't think it even comes close to a hundred. On the other hand maybe, as Bus stop said, each of the ten days is counted as a new occurrence. At least this would reduce the number by an order of magnitude.  λogosπraxis "