Description
Data on the value of a $\$$1 U.S. stock investment in 1871 at
the end of each year, based on the Standard and Poor (S$\&$P)
500 Composite stock index.source
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A
Course in Methods of Data Analysis (2nd ed), Duxbury.