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Number of competing nations in the Summer Olympics correlates with...

VariableCorrelationYearsHas img?
Votes for Republican Senators in Louisianar=0.976yrsNo
The wind speed in Jacksonviller=0.968yrsNo
Votes for Democratic Senators in Floridar=0.868yrsNo
Average views of Matt Parker's YouTube videosr=0.7811yrsNo
Nielsen Ranking of Smallville Season Finaler=0.7110yrsYes!
The distance between the moon and Earthr=0.4846yrsNo



Number of competing nations in the Summer Olympics also correlates with...

VariableCorrelationYearsSys. Score
Votes for Democratic Senators in Marylandr=0.948yrs296
Votes for Republican Senators in Louisianar=0.936yrs278
Votes for the Democratic Presidential candidate in Washington, D.C.r=0.8612yrs230
Votes for the Democratic Presidential candidate in Illinoisr=0.8512yrs218
Votes for Republican Senators in Arizonar=0.869yrs190
Hydopower energy generated in Finlandr=0.5442yrs156
Freezing temperatures in Albuquerquer=-0.9313yrs148
Average temperature in Las Vegasr=0.8113yrs147
Total length of MinuteEarth YouTube videosr=0.769yrs145
Average number of comments on Matt Parker's YouTube videosr=0.7411yrs144
Solar power generated in Bosnia and Herzegovinar=0.739yrs136
Solar power generated in Omanr=0.739yrs136
Searches for 'never gonna give you up'r=0.6216yrs132
Associates degrees awarded in consumer sciencesr=0.6711yrs129
The number of wastewater treatment plant operators in Utahr=0.812yrs128
Google searches for 'how to build a bunker'r=0.5618yrs124
The number of computer network support specialists in Oregonr=0.7710yrs122
Popularity of the 'i am once again' memer=0.5516yrs122
Popularity of the 'crying michael jordan' memer=0.5516yrs122
Number of edits to the Wikipedia article for Taylor Swiftr=0.5616yrs121
Air pollution in Cumberland, Marylandr=0.749yrs119
xkcd comics published about politicsr=0.5415yrs118
xkcd comics published about chartsr=0.5315yrs116
The number of movies Eva Longoria appeared inr=0.4919yrs116
Total comments on Matt Parker's YouTube videosr=0.7411yrs114
Google searches for 'Bratz Dolls'r=0.5514yrs114
Garmin's stock price (GRMN)r=0.5220yrs114
Customer satisfaction with Dellr=0.4725yrs113
Volume of wheat used in the United States as animal feedr=0.4822yrs112
Google searches for 'President phone number'r=0.4818yrs110
The number of insurance claims and policy processing clerks in Alabamar=0.6319yrs110
Air pollution in Bozeman, Montanar=0.5822yrs108
DexCom's stock price (DXCM)r=0.516yrs107
Annual US household spending on beefr=0.4622yrs107
Patents granted to Texas Instrumentsr=0.611yrs107
KLA Corporation's stock price (KLAC)r=0.4520yrs104
Average temperature in Philadelphiar=0.849yrs102
Total likes of Matt Parker's YouTube videosr=0.7111yrs100
Hot days in Miamir=0.7913yrs89
Biomass power generated in Kazakhstanr=0.679yrs87
Total views on Matt Parker's YouTube videosr=0.6911yrs86
Votes for the Democratic Presidential candidate in New Hampshirer=0.8512yrs84
Google searches for 'takeout near me'r=0.517yrs80
Average temperature in Austinr=0.7713yrs76
The number of roofers in Massachusettsr=0.6119yrs76
How geeky Matt Parker's YouTube video titles arer=0.6811yrs75
Votes for the Democratic Presidential candidate in Vermontr=0.8512yrs74
Popularity of the 'wojak' memer=0.516yrs74
Average temperature in Phoenixr=0.7713yrs66
The number of forest fire prevention specialists in Oregonr=0.6119yrs66
Solar power generated in Ghanar=0.69yrs66
Votes for the Republican Presidential candidate in Alaskar=0.8412yrs62
Average length of MinuteEarth YouTube videosr=0.679yrs62
Hot days in Torontor=0.756yrs56
The number of motorboat mechanics in Floridar=0.6512yrs56
Solar power generated in Azerbaijanr=0.589yrs54
Votes for the Democratic Presidential candidate in New Yorkr=0.8412yrs52
Average length of Extra History YouTube videosr=0.6610yrs51
The number of motorboat mechanics in Wisconsinr=0.6512yrs46
Solar power generated in Chiler=0.589yrs44
Average temperature in Miamir=0.7513yrs43
Votes for the Republican Presidential candidate in Georgiar=0.8312yrs40
How nerdy LEMMiNO YouTube video titles arer=0.6510yrs40
The number of computer user support specialists in Missourir=0.6710yrs36
Solar power generated in Seychellesr=0.598yrs34
Average temperature in Jacksonviller=0.7512yrs32
Votes for the Democratic Presidential candidate in Californiar=0.8312yrs30
How fun CGP Grey YouTube video titles arer=0.6511yrs30
The number of computer network architects in Oregonr=0.6710yrs26
Average temperature in Berlinr=0.613yrs20
Votes for the Democratic Presidential candidate in Vermontr=0.8212yrs19
The average number of likes on Matt Parker's YouTube videosr=0.6411yrs19
Number of Atlantic Hurricanes each yearr=0.5715yrs9
Number of CGP Grey Videos publishedr=0.6711yrs8
Total likes of PBS Space Time YouTube videosr=0.727yrs-3
Average temperature in Torontor=0.696yrs-3
Votes for the Democratic Presidential candidate in Mainer=0.8212yrs-6
Average temperature in Albuquerquer=0.713yrs-14
Total length of Deep Look YouTube videosr=0.78yrs-15
Votes for the Democratic Presidential candidate in Washingtonr=0.8212yrs-16
Rain in Louisviller=0.7112yrs-24
Votes for Republican Senators in Ohior=0.858yrs-27
How 'hip and with it' Simone Giertz's YouTube video titles arer=0.698yrs-27
Rain in Miamir=0.713yrs-34
Votes for the Democratic Presidential candidate in Connecticutr=0.8112yrs-38
Average length of Deep Look YouTube videosr=0.688yrs-38
The wind speed in Minneapolisr=-0.9111yrs-46
Votes for the Democratic Presidential candidate in New Yorkr=0.8112yrs-48
How geeky Technology Connections YouTube video titles arer=-0.977yrs-49
The wind speed in Nashviller=-0.9111yrs-56
Votes for the Republican Presidential candidate in Virginiar=0.8112yrs-58
How cool PBS Space Time YouTube video titles arer=0.677yrs-60
Average temperature in Louisviller=0.6813yrs-68
How geeky Simone Giertz's YouTube video titles arer=0.658yrs-72
Rain in Columbusr=0.6810yrs-80


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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.)
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