Additional Info: Relative search volume (not absolute numbers)
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Google searches for 'why do i have a migraine' correlates with...
| Variable | Correlation | Years | Has img? |
| Master's degrees awarded in Military technologies | r=1 | 10yrs | No |
| Wind power generated in Vietnam | r=0.99 | 14yrs | Yes! |
| Bachelor's degrees awarded in Military technologies | r=0.99 | 10yrs | No |
| Average length of SmarterEveryDay YouTube videos | r=0.99 | 17yrs | No |
| Solar power generated in United Arab Emirates | r=0.97 | 13yrs | Yes! |
| Annual US household spending on beef | r=0.96 | 19yrs | No |
| Associates degrees awarded in Social sciences | r=0.95 | 11yrs | No |
| Popularity of the 'wojak' meme | r=0.95 | 18yrs | No |
| Popularity of the 'spiderman pointing' meme | r=0.94 | 18yrs | No |
| Alphabet's stock price (GOOGL) | r=0.91 | 19yrs | No |
| Popularity of the first name Lara | r=0.89 | 19yrs | No |
| Pfizer's stock price (PFE) | r=0.89 | 20yrs | No |
| Popularity of the first name Shay | r=0.88 | 19yrs | No |
| The number of technical writers in Colorado | r=0.65 | 19yrs | No |
| xkcd comics published about physics | r=0.6 | 17yrs | No |
Google searches for 'why do i have a migraine' also correlates with...
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You caught me! While it would be intuitive to sort only by "correlation," I have a big, weird database. If I sort only by correlation, often all the top results are from some one or two very large datasets (like the weather or labor statistics), and it overwhelms the page.
I can't show you *all* the correlations, because my database would get too large and this page would take a very long time to load. Instead I opt to show you a subset, and I sort them by a magic system score. It starts with the correlation, but penalizes variables that repeat from the same dataset. (It also gives a bonus to variables I happen to find interesting.)