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Data source: Environmental Protection Agency
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Air quality in Davenport, Iowa correlates with...

VariableCorrelationYearsSys. Score
Wind power generated in Venezuelar=0.8810yrs280
Kerosene used in Malir=0.6942yrs225
Customer satisfaction with Southwest Airlinesr=0.6928yrs204
Nuclear power generation in Romaniar=0.7426yrs190
US milk fat used to produce whey products (net)r=0.7722yrs188
Number of Lawyers in the United Statesr=0.6334yrs187
US milk fat used to produce yogurtr=0.7622yrs187
Super Bowl TV viewershipr=0.6533yrs186
Annual Revenue of Walt Disney Companyr=0.6632yrs185
Total employee count at Continental AGr=0.7124yrs183
Inflation in the USr=0.6531yrs180
Customer satisfaction with Costcor=0.6922yrs178
Total likes of SciShow Space YouTube videosr=0.8310yrs176
Average milk produced per cow in the USr=0.5143yrs174
Customer satisfaction with Krogerr=0.6327yrs174
Customer satisfaction with Appler=0.628yrs170
Total number of automotive recallsr=0.4943yrs169
Total length of SciShow Space YouTube videosr=0.7810yrs169
Ticket prices at North American movie theatersr=0.7322yrs166
GMO use in cottonr=0.7323yrs166
Annual US household spending on electricityr=0.7423yrs165
US household spending on fresh fruitsr=0.7323yrs164
Average number of comments on CGP Grey YouTube videosr=0.7313yrs164
Physical album shipment volume in the United Statesr=-0.7824yrs163
Number of active magazines in the United Statesr=0.7915yrs163
U.S. direct investment abroadr=0.7222yrs162
Yearly Total Gross Income of US Farmsr=0.7123yrs162
Annual US household spending on utilitiesr=0.7223yrs162
Biomass power generated in Sloveniar=0.7623yrs160
Hollister retail store count worldwider=0.7123yrs160
The number of court and municipal clerks in Iowar=0.7320yrs160
Customer satisfaction with TJ Maxxr=0.7214yrs160
Economic output of Washington metro arear=0.7121yrs158
The number of physician assistants in Iowar=0.6920yrs154
The number of dental assistants in Iowar=0.6920yrs154
Number of edits to the Wikipedia article for Thanksgivingr=-0.8216yrs154
Total Revenue of the NFL Teamsr=0.6820yrs153
Customer satisfaction with Dillard'sr=0.5927yrs153
Automotive recalls issued by Keystone RV Companyr=0.5825yrs152
Customer satisfaction with Verizonr=0.6418yrs152
Automotive recalls issued by BMW of North Americar=0.4643yrs152
Automotive recalls issued by Nissan North Americar=0.4643yrs152
Automotive recalls for issues with the Power Trainr=0.4843yrs151
Budget for largest movie productionr=0.4943yrs150
USA Populationr=0.5143yrs150
Automotive recalls issued by Hyundai Motor Americar=0.4837yrs150
Customer satisfaction with T-Mobiler=0.6317yrs149
Automotive recalls for issues with the Electrical Systemr=0.4643yrs148
Wind power generated in New Zealandr=0.730yrs148
Automotive recalls for issues with the Air Bagsr=0.5133yrs146
Popularity of the first name Bryantr=-0.6343yrs146
Customer satisfaction with Motorolar=0.618yrs146
Banco Bradesco's stock price (BBD)r=0.5722yrs144
Annual US household spending on telephone servicesr=0.7223yrs142
Muenster cheese consumptionr=0.7127yrs142
Wind power generated in Czechiar=0.7422yrs136
The average number of likes on AsapSCIENCE YouTube videosr=0.7212yrs132
Butter consumptionr=0.6632yrs130
Jet fuel used in Sao Tome and Principer=0.7622yrs126
The number of medical assistants in Iowar=0.6920yrs124
Portion of all US dairy skim-solids allocated to the production of whey products (net)r=0.7722yrs116
Biomass power generated in Indiar=0.7323yrs115
Total comments on SciShow Space YouTube videosr=0.6610yrs111
Total Sales at Clothing and Accessories Storesr=0.6131yrs106
Biomass power generated in Uruguayr=0.6732yrs105
US production of yogurt, nonfrozenr=0.7222yrs101
Adidas Group's Global Net Salesr=0.723yrs101
Total Federal Construction Expenditure in the United Statesr=0.6724yrs96
Wind power generated in Japanr=0.6730yrs93
Christmas Price Index in the United Statesr=0.6331yrs91
US production of sour creamr=0.7122yrs90
UK Service Retail Price Indexr=0.7119yrs85
Gasoline pumped in Azerbaijanr=0.6930yrs83
US milk fat used to produce sour creamr=0.7122yrs80
Hotdogs consumed by Nathan's Hot Dog Eating Competition Championr=0.543yrs80
Total number of live births in Australiar=0.5343yrs74
Solar power generated in Germanyr=0.6631yrs72
Intel Corporation's annual revenuer=0.5836yrs69
US production of butterr=0.722yrs68
Biomass power generated in Slovakiar=0.6729yrs62
US Shoe Store Salesr=0.6130yrs62
US milk fat used to produce butterr=0.722yrs58
US Wind Power Generation Capacityr=0.6523yrs57
Jet fuel used in Latviar=0.6731yrs51
Gasoline Prices in the USr=0.5533yrs50
US dairy skim solids used to produce yogurt, nonfrozenr=0.7122yrs48
Annual count of part-time employees in the United Statesr=0.5533yrs41
Solar power generated in Spainr=0.6432yrs40
US dairy skim solids used to produce sour creamr=0.7122yrs38
Gasoline pumped in Bhutanr=0.6827yrs28
US dairy skim solids used to produce butterr=0.722yrs26
Jet fuel used in Malir=0.5742yrs17
US production of cheese (other than cottage cheese)r=0.6822yrs15
Gasoline pumped in Surinamer=0.5742yrs7
US milk fat used to produce cheese (excluding cottage cheese)r=0.6822yrs5
US production of evaporated and condensed milkr=0.6722yrs-6
Wind power generated in Taiwanr=0.7322yrs-16
US dairy skim solids used to produce cheese (other than cottage cheese)r=0.6822yrs-16
Biomass power generated in Rwandar=0.7222yrs-28
Ice cream consumptionr=-0.7132yrs-28
US dairy skim solids used to produce evaporated and condensed milkr=0.6522yrs-41


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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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