Again, the frequency graphs are dominated by the topics popular with Mind in its early years.
There is psychology, then idealism dominates, then there is ordinary language philosophy, and the rest is almost all just noise. (Except for a burst of interest in norms at the end.) It’s a bit clearer if we graph the ninety topics distinctly, but not a lot.
And it’s a bit clearer still if we restrict to the last seventy-five years and animate it, but still not particularly useful.
These graphs aren’t particularly informative, but we’ll end with some graphs that may if anything be less informative.