Click here to see the SAS code.
Click here to see the example.

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What's cool about these graphs?
The sas code reads the data *directly* from the web, on-the-fly,
each time I re-run the sas job! :)

Note that some of these graphs (that cover long time periods)
use logarithmic y-axis.

Also, since the graphs are kinda wide, I use a 'plot2' (of the same data)
to put an additional axis on the right-hand-side.

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