Airline Passengers 1949 to 1960
-------------------------------

Taken from John Burkardt's website,
https://people.sc.fsu.edu/~jburkardt/datasets/time_series/airline_passengers.txt

John Burkhardt on the data:

"AIRLINE_PASSENGERS is a table of 3 columns and 144 rows. Column 1 is the year,
from 1949 to 1960, column 2 is the month, from 1 to 12, and column 3 is the number 
of international airline passengers in thousands. This data was presented as series 
G by Box, Jenkins and Reinsel, 1976.
