And if you like even neater and cleaner data...

In a previous post, I described how non-dictionary word use in Amazon reviews peak in a periodic way in Mercury retrograde.

​I redid the analysis but also took out the common words "dvds", "DVDs", "apps", and "Apps" from consideration. (They would have been counted as misspellings before which I did not first realize.)

I also applied the mean filter to a wider time frame, so that it would be more accurate in the window of July 1, 2009 to Jul 1, 2013:

That was enough to reduce the peak at 9. (Perhaps, there was some kind of DVD and/or app release cycle that the 9 band referred to.)

The result is that the fundamental in the transform is now at 13. ​​

That gives us the following for the fundamental wave:

The peaks of this wave align very well with Mercury retrograde (demarcated by the gray bands), representing a regular increase of 613.789 percent from the average difference of blue actual value from gold general trend in the top picture during those times