\name{coal}
\alias{coal}
\title{Coal-Mining Disasters data.}
\usage{coal}
\description{Coal-Mining Disasters data.}
\details{The \sQuote{coal} data frame has 112 rows and 2 columns.

This data frame gives the numbers of explosions per year in coal mines
which resulted in 10 or more fatalities. The time span of the data is
from 1851 (March 15) until 1962 (March 22).}
\docType{data}
\keyword{datasets}