\Header{phones}{The World's Telephones}
\keyword{datasets}{phones}
\begin{Usage}
\begin{verbatim}data(phones)\end{verbatim}
\end{Usage}
\begin{Format}
A matrix with 7 rows and 8 columns.\end{Format}
\begin{Description}
The number of telephones in various regions of the world (in
thousands).  The columns of the matrix give the figures for
a given region, and the rows the figures for a year.

The regions are: North America, Europe, Asia, South America,
Oceania, Africa, Central America.

The years are: 1951, 1956, 1957, 1958, 1959, 1960, 1961.\end{Description}
\begin{Source}
AT\&T (1961).  The World's Telephones.\end{Source}
\begin{References}
McNeil, D. R. (1977).  Interactive Data Analysis.  New York: Wiley.\end{References}

