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Data source: Environmental Protection Agency
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Air quality in Williston, North Dakota correlates with...

VariableCorrelationYearsSys. Score
The TJX Companies' stock price (TJX)r=0.9618yrs428
PPG Industries' stock price (PPG)r=0.9618yrs428
Tractor Supply Company's stock price (TSCO)r=0.9618yrs428
Solar power generated in Canadar=0.9528yrs418
Liquefied petroleum gas used in Tajikistanr=0.9727yrs417
Biomass power generated in Nigeriar=0.9720yrs413
The number of postal service clerks in North Dakotar=0.9717yrs408
Automotive recalls for issues with the Air Bagsr=0.9230yrs404
Regeneron Pharmaceuticals' stock price (REGN)r=0.9518yrs396
The average number of likes on SmarterEveryDay YouTube videosr=0.9313yrs394
Total likes of SmarterEveryDay YouTube videosr=0.9213yrs393
Sales of LP/Vinyl Albumsr=0.9327yrs392
Visitors to Disney Worlds Magic Kingdomr=0.9513yrs392
Biogen's stock price (BIIB)r=0.9518yrs386
US average dairy skim-solid content of yogurt, nonfrozenr=0.9520yrs386
Wind power generated in Tunisiar=0.9720yrs383
Popularity of the 'drake' memer=0.9414yrs378
The number of plumbers in North Dakotar=0.9417yrs376
Google searches for 'numberphile'r=0.9416yrs374
The number of maintenance and repair workers in North Dakotar=0.9417yrs374
Google searches for 'two day shipping'r=0.9316yrs373
Biomass power generated in Latviar=0.9719yrs372
Annual Revenue of the Lego Groupr=0.9217yrs371
Google searches for 'Numberphile'r=0.9313yrs370
Revenue of US Broadcasting Industryr=0.9215yrs369
The average number of likes on The Game Theorists YouTube videosr=0.9211yrs361
Solar power generated in Luxembourgr=0.9619yrs360
Number of times 14 was a winning Mega Millions numberr=0.8918yrs360
US household spending on health insurancer=0.9320yrs356
GMO use in corn grown in North Dakotar=0.9315yrs356
Annual US household spending on health insurancer=0.9220yrs354
US household spending on healthcarer=0.9220yrs354
Number of websites on the internetr=0.8928yrs352
Bachelor's degrees awarded in Psychologyr=0.978yrs352
US household spending on rented dwellingsr=0.9120yrs352
The Walt Disney Company's stock price (DIS)r=0.9418yrs350
Solar power generated in Greecer=0.9716yrs349
Christmas Price Index in the United Statesr=0.8928yrs348
US Shoe Store Salesr=0.8828yrs346
The number of OSHA specialists in North Dakotar=0.9316yrs342
US Wind Power Generation Capacityr=0.920yrs341
Number of Walmart stores worldwider=0.9312yrs340
US production of dry milk products (net)r=0.8920yrs340
Google searches for 'matt levine'r=0.9116yrs340
Biomass power generated in Lithuaniar=0.9519yrs339
Total Revenue of the NFL Teamsr=0.8919yrs338
US dairy skim solids used to produce dry milk productsr=0.8920yrs338
Google's Advertising Revenuer=0.8719yrs336
Kimberly-Clark's stock price (KMB)r=0.9418yrs335
The number of lawyers in North Dakotar=0.9117yrs331
Google searches for 'how to go to space'r=0.9116yrs330
Average number of comments on SmarterEveryDay YouTube videosr=0.913yrs330
Petroluem consumption in Timor-Lester=0.9717yrs327
Costco Wholesale's stock price (COST)r=0.918yrs324
The number of electricians in North Dakotar=0.9217yrs321
Google searches for 'ice bath'r=0.916yrs318
CVS stock price (CVS)r=0.9118yrs314
The number of hotel desk clerks in North Dakotar=0.9117yrs310
US production of whey products (net)r=0.8720yrs306
Ecolab's stock price (ECL)r=0.9318yrs304
The number of production, planning, and expediting clerks in North Dakotar=0.9117yrs300
Wind power generated in United Kingdomr=0.9332yrs299
Google searches for 'cat memes'r=0.9416yrs298
US milk fat used to produce dry milk productsr=0.8720yrs296
The Hershey Company's stock price (HSY)r=0.9318yrs294
Wind power generated in Belgiumr=0.9233yrs288
Google searches for 'i have a headache'r=0.8816yrs286
Google's annual advertising revenuer=0.8719yrs286
US production of cheese (other than cottage cheese)r=0.8620yrs285
Novo Nordisk's stock price (NVO)r=0.9218yrs282
Number of Samsung Electronics Employees Worldwider=0.9211yrs280
Wind power generated in Canadar=0.9528yrs278
US milk fat used to produce cheese (excluding cottage cheese)r=0.8620yrs275
Comcast's stock price (CMCSA)r=0.9218yrs272
Biomass power generated in Romaniar=0.9528yrs268
US dairy skim solids used to produce whey productsr=0.8720yrs265
Starbucks' stock price (SBUX)r=0.9218yrs262
The number of Breweries in the United Statesr=0.8930yrs257
Google searches for 'tummy ache'r=0.8916yrs257
The number of secretaries in North Dakotar=0.9310yrs257
Solar power generated in Austriar=0.9427yrs256
Gilead Sciences' stock price (GILD)r=0.9218yrs252
Google searches for 'cold shower'r=0.8816yrs246
The number of civil engineers in North Dakotar=0.8917yrs246
Solar power generated in Germanyr=0.9329yrs246
Canadian Pacific Railway's stock price (CP)r=0.9218yrs242
Google searches for 'buy a house'r=0.8816yrs236
The number of construction laborers in North Dakotar=0.8917yrs236
Biomass power generated in Paraguayr=0.934yrs236
AutoZone's stock price (AZO)r=0.9218yrs232
Google searches for 'do i need to go to the doctor'r=0.8816yrs226
Solar power generated in Switzerlandr=0.9230yrs226
The number of accountants and auditors in North Dakotar=0.8817yrs225
Seagen's stock price (SGEN)r=0.9318yrs222
The number of chiropractors in North Dakotar=0.8717yrs215
Renewable energy production in Cabo Verder=0.9327yrs214
AMETEK's stock price (AME)r=0.9218yrs212
The number of logisticians in North Dakotar=0.914yrs205
Wind power generated in Chinar=0.9130yrs204
Gartner's stock price (IT)r=0.9218yrs202
Biomass power generated in Indonesiar=0.9327yrs194


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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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