Annual US new freight cars, 1947-1993. Freight cars, new (excl. rebuilt), new orders, equip. mfrers. Series N0193 from the M3 competition.
Hyndman, R.J., Koehler, A.B., Ord, J.K., and Snyder, R.D., (2008) Forecasting with exponential smoothing: the state space approach, Springer. www.exponentialsmoothing.net
plot(freight,main="New freight cars shipped in USA",xlab="Year",ylab="")