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

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I'm not sure who the first person that noticed this was, but
here are the earliest I can find:

http://i.imgur.com/YrkHK2r.png
http://www.themarysue.com/bruce-batman-graph/  (dated Feb 12, 2013)
http://www.gagbay.com/gag/holy_name_popularity_batman-236893/


Found link to the ssa data here:
http://www.nancy.cc/2012/09/26/beyond-the-top-1000-names-download-links/

Downloaded "Top 1000" names US data from the ssa website:
http://www.ssa.gov/OACT/babynames/names.zip

It's a pretty simple SAS/Graph Gplot line graph,
with a text 'note' in it.

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