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Data source: Bureau of Larbor Statistics
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The number of roofers in North Dakota correlates with...

VariableCorrelationYearsSys. Score
Number of Las Vegas Hotel Room Check-Insr=0.9211yrs338
Associates degrees awarded in Business operationsr=0.9311yrs338
Associates degrees awarded in health assistancer=0.9311yrs338
Associates degrees awarded in Legal professions and studiesr=0.9311yrs338
Associates degrees awarded in Accountingr=0.9211yrs306
United States' Fruit Juice Export Volumer=0.8813yrs301
Liquefied petroleum gas used in Serbiar=0.8616yrs300
Global sales revenue of elevators and escalatorsr=0.917yrs296
Total sales of commercial vehicles in Chinar=0.927yrs293
Global revenue from elevator and escalator salesr=0.917yrs292
The price of goldr=0.8712yrs283
Global shipwrecks r=0.8512yrs282
Master's degrees awarded in Liberal artsr=0.9310yrs278
London Gold Pricesr=0.8810yrs275
Associates degrees awarded in Businessr=0.9111yrs265
Associates degrees awarded in Business managementr=0.911yrs254
Associates degrees awarded in Health professionsr=0.911yrs244
Master's degrees awarded in Transportationr=0.910yrs234
Associates degrees awarded in Criminal justice and correctionsr=0.911yrs194
Fossil fuel use in Bulgariar=0.8119yrs193
Electricity generation in Yemenr=0.8119yrs193
US household spending on maintenance and repairsr=0.8120yrs192
Master's degrees awarded in literaturer=0.910yrs184
US average dairy skim-solid content of cottage cheeser=0.7819yrs184
Associates degrees awarded in law enforcementr=0.8911yrs172
Google searches for 'how to make charts'r=0.8116yrs170
Patents granted to Dellr=-0.9511yrs167
Cenovus Energy's stock price (CVE)r=0.8113yrs166
Customer satisfaction with Customer Shippingr=0.7619yrs166
The number of movies Channing Tatum appeared inr=0.7318yrs166
US average dairy skim-solid content of fluid beverage milkr=-0.8719yrs164
Popularity of the first name Kellenr=0.7620yrs164
Bachelor's degrees awarded in linguisticsr=0.8910yrs162
NCAA Men's Skiing champion's pointsr=0.7420yrs162
Asthma prevalence in American childrenr=0.7317yrs162
Google searches for 'xkcd'r=0.7516yrs161
Total Digital Music Single Downloadsr=0.7419yrs161
Global revenue generated by McDonald'sr=0.7418yrs160
The distance between Saturn and Jupiterr=0.7220yrs160
Popularity of the first name Dashar=0.7420yrs160
The number of movies Dwayne Johnson appeared inr=0.6820yrs160
Petroluem consumption in Venezuelar=0.8119yrs160
US household spending on gasoliner=0.7220yrs159
How geeky MrBeast's YouTube video titles arer=0.8411yrs159
Popularity of the first name Kourtneyr=0.720yrs154
How nerdy MrBeast's YouTube video titles arer=0.811yrs153
Master's degrees awarded in linguisticsr=0.8910yrs152
How fun Extra History YouTube video titles arer=0.7811yrs150
Organic Food Sales Volume in the United Statesr=0.8310yrs148
Kerosene used in Congo-Brazzaviller=0.819yrs148
Visitors to SeaWorld Californiar=0.7415yrs146
Customer satisfaction with Dollar Generalr=0.7614yrs146
Asthma prevalence in American childrenr=0.717yrs142
Bachelor's degrees awarded in literaturer=0.8810yrs141
xkcd comics published about philosophyr=0.6816yrs140
Customer satisfaction with FOXNews.comr=0.7312yrs139
Asthma prevalence in American childrenr=0.6717yrs138
Customer satisfaction with UPSr=0.6719yrs137
Jet fuel used in Cameroonr=0.7919yrs137
Brick cheese consumptionr=0.6219yrs136
Number of public school students in 1st grader=0.6520yrs136
Google searches for 'download firefox'r=0.6619yrs136
Popularity of the 'bazinga' memer=0.6417yrs136
The number of movies Rooney Mara appeared inr=0.6318yrs136
Chicago Bulls Win Percentage Progressionr=0.6520yrs134
Devon Energy's stock price (DVN)r=0.6520yrs134
Associates degrees awarded in Engineering technologiesr=0.8811yrs130
Popularity of the first name Jayceer=0.6920yrs123
Associates degrees awarded in Visual and performing artsr=0.8811yrs120
How geeky LEMMiNO YouTube video titles arer=0.7711yrs118
Popularity of the first name Liliar=0.6920yrs113
Wind power generated in Uruguayr=-0.9214yrs108
How insightful CGP Grey YouTube video titles arer=0.7512yrs106
Jet fuel used in Kosovor=0.8313yrs97
New York Times Fiction Best Sellersr=0.7612yrs96
Total views on minutephysics YouTube videosr=0.7212yrs92
Bachelor's degrees awarded in Educationr=0.8510yrs92
Total number of passenger vehicles sold in Chinar=0.827yrs88
Popularity of the first name Macier=0.6820yrs86
Electricity generation in Djiboutir=0.7519yrs84
Master's degrees awarded in gender studiesr=0.8510yrs82
How provocative Computerphile YouTube video titles arer=0.7210yrs80
Number of Public Library Members in the UKr=0.7312yrs79
Popularity of the first name Dominikr=0.6720yrs75
Fossil fuel use in Djiboutir=0.7519yrs74
Public Library Website Visits in the UKr=0.758yrs73
Average length of Tom Scott's YouTube videosr=-0.8814yrs69
Popularity of the first name Blaker=0.6620yrs64
Liquefied petroleum gas used in Senegalr=-0.8619yrs64
How clickbait-y SciShow Space YouTube video titles arer=0.729yrs59
Kerosene used in Ugandar=0.7719yrs54
Total length of The Game Theorists YouTube videosr=-0.8514yrs46
Jet fuel used in Central African Republicr=-0.8419yrs42
Jet fuel used in Eritrear=-0.8419yrs32
Kerosene used in Ethiopiar=0.7619yrs22
Liquefied petroleum gas used in Kosovor=0.7914yrs12
Electricity generation in Bermudar=0.7319yrs1
Fossil fuel use in Bermudar=0.7319yrs-9
Petroluem consumption in Solomon Islandsr=0.7519yrs-19
Associates degrees awarded in Practical nursingr=0.8511yrs-19
Gasoline pumped in Venezuelar=0.7519yrs-29


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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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