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Data source: Bureau of Larbor Statistics
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The number of switchboard operators in Iowa correlates with...

VariableCorrelationYearsSys. Score
Milk consumptionr=0.9719yrs420
Arson in United Statesr=0.9620yrs418
US birth rates of triplets or morer=0.9619yrs416
Ice cream consumptionr=0.9619yrs416
GMO use in cottonr=0.9820yrs416
The distance between Neptune and the moonr=0.9820yrs414
The distance between Neptune and the Sunr=0.9820yrs414
The distance between Neptune and Earthr=0.9820yrs414
Popularity of the first name Brooker=0.9920yrs413
Popularity of the first name Haileyr=0.9920yrs413
Popularity of the first name Guadaluper=0.9920yrs413
Gasoline pumped in Swedenr=0.9920yrs413
Google searches for 'desktop background'r=0.9916yrs412
Nuclear power generation in Germanyr=0.9719yrs412
Gasoline pumped in Switzerlandr=0.9820yrs412
U.S. intercountry adoptionsr=0.9619yrs409
Cigarette Smoking Rate for US adultsr=0.9519yrs408
US average milk-fat content of milk fat and skim solids byproduct fluid beverage milkr=0.9719yrs408
United States music album salesr=0.9516yrs404
Associates degrees awarded in Legal professions and studiesr=0.9711yrs404
Bachelor's degrees awarded in Educationr=0.9710yrs404
Master's degrees awarded in Transportationr=0.9610yrs403
Robberies in the USr=0.9420yrs384
Popularity of the first name Zackaryr=0.9920yrs383
Viewership count of American Idol Season Finaler=0.9420yrs382
Remaining Forest Cover in the Brazilian Amazonr=0.9320yrs382
Arson in Iowar=0.9220yrs382
Gasoline pumped in Finlandr=0.9720yrs380
GMO use in corn grown in Iowar=0.9120yrs378
US household spending on mortgage interest and chargesr=0.9520yrs378
GMO use in cottonr=0.9220yrs377
US household spending on natural gasr=0.9420yrs377
Portion of all US dairy skim-solids allocated to the production of fluid beverage milkr=0.9619yrs376
Google searches for 'oprah winfrey'r=0.9319yrs376
xkcd comics published about romancer=0.9216yrs376
Physical album shipment volume in the United Statesr=0.9220yrs374
US household spending on postage and stationeryr=0.9220yrs374
Popularity of the first name Brendenr=0.9920yrs373
Google searches for 'shook'r=0.9119yrs373
Associates degrees awarded in Accountingr=0.9611yrs372
Gasoline pumped in Norwayr=0.9720yrs370
Global Per Capita Rice Consumptionr=0.9117yrs370
Pirate attacks globallyr=0.914yrs370
US music album salesr=0.9116yrs368
Portion of all US dairy skim-solids allocated to the production of frozen dairy productsr=0.9619yrs366
Popularity of the first name Destineer=0.9920yrs363
Associates degrees awarded in Visual and performing artsr=0.9611yrs362
Gasoline pumped in Sloveniar=0.9720yrs360
Popularity of the first name Desiraer=0.9920yrs353
Associates degrees awarded in Business managementr=0.9511yrs351
Burglary rates in the USr=0.9120yrs350
Fossil fuel use in Denmarkr=0.9519yrs349
US household spending on prescription drugsr=0.9220yrs344
Google searches for 'report UFO sighting'r=0.8819yrs344
Popularity of the first name Leslyr=0.9920yrs343
Air pollution in Des Moinesr=0.8720yrs342
National Lacrosse Champions' Final Pointr=0.920yrs341
Google searches for 'Britney Spears'r=0.9215yrs340
Gasoline pumped in Croatiar=0.9719yrs339
Popularity of the first name Kalynr=0.9920yrs333
Sherbet consumptionr=0.9319yrs332
Kerosene used globallyr=0.9619yrs328
Popularity of the first name Bryanar=0.9920yrs323
Cottage cheese consumptionr=0.9119yrs319
Gasoline pumped in Denmarkr=0.9620yrs318
Popularity of the first name Abigayler=0.9920yrs313
Bachelor's degrees awarded in Social sciences and historyr=0.9610yrs313
The distance between Neptune and Mercuryr=0.8920yrs311
Gasoline pumped in Greecer=0.9620yrs308
Violent crime ratesr=0.8720yrs304
US production of fluid beverage milkr=0.9219yrs303
Master's degrees awarded in literaturer=0.9610yrs303
Popularity of the first name Christopherr=0.9820yrs302
US household spending on fresh milk and creamr=0.920yrs301
Kerosene used in Iranr=0.9619yrs298
US average milk-fat content of frozen dairy productsr=0.9419yrs293
Viewership count for Days of Our Livesr=0.8919yrs293
Popularity of the first name Joshuar=0.9820yrs292
Bachelor's degrees awarded in linguisticsr=0.9510yrs292
US household spending on clothin for womenr=0.920yrs291
Kerosene used in Malawir=0.9619yrs288
NASA's budget as a percentage of the total US Federal Budgetr=0.8720yrs287
Popularity of the first name Tylerr=0.9820yrs282
Associates degrees awarded in Criminal justice and correctionsr=0.9511yrs281
Portion of all US dairy skim-solids allocated to the production of cottage cheeser=0.9219yrs280
Gasoline pumped in Czechiar=0.9520yrs277
Popularity of the first name Brandonr=0.9820yrs272
US average milk-fat content of cottage cheeser=0.9219yrs270
Gasoline pumped in Irelandr=0.9520yrs267
Popularity of the first name Taylorr=0.9820yrs262
Petroluem consumption in Italyr=0.9520yrs257
Popularity of the first name Samanthar=0.9820yrs252
Liquefied petroleum gas used in Lithuaniar=0.9520yrs247
Popularity of the first name Anthonyr=0.9820yrs242
Bachelor's degrees awarded in literaturer=0.9510yrs242
Gasoline pumped in United Kingdomr=0.9520yrs237
Popularity of the first name Jonathanr=0.9820yrs232
Bachelor's degrees awarded in Philosophyr=0.9510yrs232
Liquefied petroleum gas used in Barbadosr=0.9519yrs226
Popularity of the first name Kevinr=0.9820yrs222
Gasoline pumped in Latviar=0.9520yrs187


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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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