Possible chaoticity for the time series of the amount of nuclear information released by the newsmedia

The amount of information concerning nuclear problems was time-analysed which has been released by three types of the newsmedia in Japan, the press, television and magazines during the past 20 years, The time series of the logarithmic value of the amount released by some of the newsmedia was found to be possibly chaotic, or at least to be non-stochastic, Such a characteristic of time series can be interpreted as a result of the exertion of a certain sort of selection process in the interior of the newsmedia in deciding an event as news to be released