

   MMoonntthhllyy MMeeaann RReellaattiivvee SSuunnssppoott NNuummbbeerrss

        data(sunspots)

   FFoorrmmaatt::

        A time series of 229 cases (years from 1749 to 1983) on
        12 variables (the mean relative sunspot numbers in the
        months January to December).  The last case is incom-
        plete.

   DDeessccrriippttiioonn::

        Zurich monthly sunspot numbers from 1749 to 1983.

   SSoouurrccee::

        D. F. Andrews and A. M. Herzberg (1985).  Data: A Col-
        lection of Problems from Many Fields for the Student
        and Research Worker.  New York: Springer-Verlag.

