If you did that, though, you'd have to plot each president as a line. That's not necessarily a bad thing, but it's a different visualization entirely. This re

If you did that, though, you'd have to plot each president as a line. That's not necessarily a bad thing, but it's a different visualization entirely. This reminds me in many ways of Hans Rosling's TED talk on visualizing global health outcomes and other data: http://www.ted.com/talks/hans_rosling_shows_the_best_stats_you_ve_ever_seen.html http://www.ted.com/talks/hans_rosling_shows_the_best_stats_y...