Long description
The horizontal axis of the graph is labelled Year and the vertical axis is labelled Miles. Each of the 5 lines plots data points for every year from 1989 to 2009, and each shows an overall downward slope.
The horizontal axis, Year, shows years 1989 to 2009 in increments of 5:
1989
1994
1999
2004
2009
The vertical axis, Miles, runs from 0 to 450 in increments of 50.
A key to the right of the graph differentiates each time frame’s data lines by the following:
Data for 12 hours out is plotted with square data points
Data for 24 hours out is plotted with triangular data points
Data for 36 hours out is plotted with small exes as data points
Data for 48 hours out is plotted with asterisk data points
Data for 72 hours out is plotted with ...
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