Monthly total generation of electricity by the U.S. electric industry (Jan 1985 - Oct 1996.
uselec
Time series data
Makridakis, Wheelwright and Hyndman (1998) Forecasting: methods and applications, John Wiley & Sons: New York. Exercise 7.8.
plot(uselec)seasonplot(uselec)tsdisplay(uselec)