\HeaderA{Belgian-phones}{Belgium Phone Calls 1950-1973}{Belgian.Rdash.phones}
\aliasA{phones}{Belgian-phones}{phones}
\keyword{datasets}{Belgian-phones}
\begin{Description}\relax
A list object with the annual numbers of telephone calls, in
Belgium.  The components are:
\describe{
\item[\code{year}] last two digits of the year.

\item[\code{calls}] number of telephone calls made (in millions of calls).

}
\end{Description}
\begin{Usage}
\begin{verbatim}
phones
\end{verbatim}
\end{Usage}
\begin{Source}\relax
P. J. Rousseeuw and A. M. Leroy (1987)
\emph{Robust Regression \& Outlier Detection.} Wiley.
\end{Source}
\begin{References}\relax
Venables, W. N. and Ripley, B. D. (2002)
\emph{Modern Applied Statistics with S.} Fourth edition.  Springer.
\end{References}

