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Data source: Environmental Protection Agency
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Air quality in Knoxville, Tennessee correlates with...

VariableCorrelationYearsSys. Score
Solar power generated in Libyar=0.9712yrs405
Customer satisfaction with Dillard'sr=0.8927yrs368
Google searches for 'i have the flu'r=0.8520yrs355
Electricity generation in Kazakhstanr=0.8930yrs351
Wind power generated in Latviar=0.8826yrs346
US milk fat used to produce yogurtr=0.8922yrs342
U.S. direct investment abroadr=0.8622yrs338
US dairy skim solids used to produce yogurt, nonfrozenr=0.8722yrs337
Hispanic cheese consumptionr=0.8626yrs328
GMO use in cornr=0.8824yrs328
GMO use in cottonr=0.8723yrs322
How professional-sounding SmarterEveryDay YouTube video titles arer=0.8917yrs322
US household spending on healthcarer=0.8723yrs320
US household spending on health insurancer=0.8723yrs320
Food spending in Tennesseer=0.8624yrs318
Grocery store spend in Tennesseer=0.8624yrs318
Annual US household spending on telephone servicesr=0.8523yrs316
Annual US household spending on educationr=0.8621yrs316
Electricity generation in Russiar=0.8530yrs315
Liquefied petroleum gas used in Moldovar=0.8927yrs305
Petroluem consumption in Turks and Caicos Islandsr=0.8827yrs294
Portion of all US dairy skim-solids allocated to the production of cheese (other than cottage cheese)r=0.8622yrs286
Gasoline pumped in Kazakhstanr=0.8530yrs282
US average milk-fat content of yogurt, nonfrozenr=0.8722yrs276
Gasoline pumped in Russiar=0.8530yrs272
Biomass power generated in Sloveniar=0.8623yrs260
Automotive recalls for issues with the Electrical Systemr=0.7443yrs255
Automotive recalls issued by BMW of North Americar=0.7143yrs255
Customer satisfaction with Appler=0.828yrs250
Total number of automotive recallsr=0.6943yrs249
Wind power generated in Czechiar=0.8622yrs248
Automotive recalls issued by Mercedes-Benz USAr=0.6443yrs244
Automotive recalls issued by Hyundai Motor Americar=0.6737yrs243
Fomento Econ's stock price (FMX)r=0.822yrs243
Automotive recalls for issues with the Power Trainr=0.6543yrs242
Total number of live births in Australiar=0.7843yrs241
Customer satisfaction with Southwest Airlinesr=0.7328yrs240
Gasoline pumped in Micronesiar=0.8822yrs238
Hotdogs consumed by Nathan's Hot Dog Eating Competition Championr=0.7243yrs238
Patents granted in the USr=0.7141yrs236
Patents granted in the USr=0.7141yrs233
Number of internet usersr=0.8224yrs231
Inflation in the USr=0.7931yrs230
Global plane crashesr=0.743yrs229
Ticket prices at North American movie theatersr=0.8122yrs228
USA Populationr=0.6943yrs228
Popularity of the first name Melodyr=0.8443yrs228
Popularity of the first name Beatricer=0.8443yrs228
Popularity of the first name Elliotr=0.8343yrs227
The number of building inspectors in Tennesseer=0.8420yrs227
Total Sales at Clothing and Accessories Storesr=0.7431yrs226
Yearly Total Gross Income of US Farmsr=0.823yrs226
Number of firearms manufactured in the USr=0.7336yrs226
Solar power generated in Angolar=0.912yrs224
Annual Revenue of Walt Disney Companyr=0.7232yrs224
The distance between Neptune and Uranusr=0.7844yrs224
Christmas Price Index in the United Statesr=0.7431yrs223
Budget for largest movie productionr=0.6343yrs222
Average milk produced per cow in the USr=0.6643yrs196
Popularity of the first name Janer=0.8243yrs196
Popularity of the first name Grahamr=0.8243yrs186
Popularity of the first name Geneviever=0.8243yrs176
US Wind Power Generation Capacityr=0.7923yrs172
US production of yogurt, nonfrozenr=0.8422yrs169
Number of households headed by single fathers in the United Statesr=0.7232yrs167
Popularity of the first name Stellar=0.8243yrs166
Adidas Group's Global Net Salesr=0.823yrs161
US milk fat used to produce sour creamr=0.8422yrs159
Popularity of the first name Henryr=0.8143yrs154
US production of cheese (other than cottage cheese)r=0.8322yrs148
Popularity of the first name Levir=0.8143yrs144
US milk fat used to produce cheese (excluding cottage cheese)r=0.8322yrs138
Popularity of the first name Ameliar=0.8143yrs134
US milk fat used to produce whey products (net)r=0.8322yrs128
Electricity generation in Equatorial Guinear=0.8142yrs126
Popularity of the first name Charlotter=0.8143yrs124
US dairy skim solids used to produce sour creamr=0.8422yrs118
Fossil fuel use in Equatorial Guinear=0.8142yrs116
Popularity of the first name Charlier=0.8143yrs114
Biomass power generated in Italyr=0.8142yrs106
US production of whey products (net)r=0.8222yrs106
Popularity of the first name Alicer=0.8143yrs104
Jet fuel used in Tanzaniar=0.8342yrs96
US production of sour creamr=0.8222yrs96
Popularity of the first name Elliottr=0.8143yrs94
US dairy skim solids used to produce cheese (other than cottage cheese)r=0.8322yrs86
Fossil fuel use in Madagascarr=0.842yrs84
Popularity of the first name Lenar=0.8143yrs84
Electricity generation in Nigerr=0.842yrs74
US dairy skim solids used to produce whey productsr=0.8222yrs74
Popularity of the first name Hudsonr=0.8143yrs74
Gasoline pumped in Mongoliar=0.8242yrs64
Popularity of the first name Silasr=0.8143yrs64
US production of butterr=0.822yrs63
Gasoline pumped in Nigeriar=0.8242yrs54
Popularity of the first name Valentinar=0.8143yrs54
US milk fat used to produce butterr=0.822yrs53
Popularity of the first name Violetr=0.8143yrs44
Italian-type cheese consumptionr=0.8527yrs43
Popularity of the first name Emmettr=0.8143yrs34
US dairy skim solids used to produce butterr=0.822yrs32


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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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