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Data source: Bureau of Larbor Statistics
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The number of opticians in Pennsylvania correlates with...

VariableCorrelationYearsSys. Score
Public Library Website Visits in the UKr=0.868yrs260
Amazon's shipping revenue in millions of dollarsr=0.8411yrs150
Amazon's Annual Outbound Shipping Expenditure in Millionsr=0.8411yrs150
Average views of PBS Space Time YouTube videosr=0.788yrs147
How clickbait-y SciShow Space YouTube video titles arer=0.769yrs145
The average number of likes on MinuteEarth YouTube videosr=0.7110yrs138
Bachelor's degrees awarded in law enforcementr=0.7210yrs137
Google searches for 'hottest man on earth'r=0.6719yrs137
Adrian Wilson's tackle countr=0.7110yrs130
Number of times 8 was a winning Mega Millions numberr=0.6218yrs130
The number of movies Naomi Watts appeared inr=0.5820yrs130
The number of movies Jake Gyllenhaal appeared inr=0.5720yrs129
Number of Botox Injections Administered to Womenr=0.6317yrs128
Popularity of the 'doge' memer=0.5817yrs128
The number of movies Gal Gadot appeared inr=0.614yrs128
Google searches for 'Taylor Swift'r=0.6117yrs126
Google searches for 'Practical Engineering'r=0.616yrs124
Ticket sales for Pittsburgh Pirates gamesr=0.5917yrs123
Gasoline pumped in Namibiar=0.5919yrs122
Popularity of the 'cicada 3301' memer=0.5417yrs122
Popularity of the 'pepe' memer=0.5417yrs122
Popularity of the first name Skyer=0.5720yrs120
Wind power generated in Samoar=0.78yrs120
Hydopower energy generated in Greecer=0.5519yrs119
Number of times 7 was a winning Mega Millions numberr=0.5318yrs116
Automotive recalls issued by Nissan North Americar=0.520yrs116
Number of liposuctions performed on womenr=0.5220yrs114
Rainfall in San Franciscor=0.5220yrs114
Letters in the Winning Word in the Scripps National Spelling Beer=0.4620yrs114
Tiger Woods' Final Position in the US Openr=0.4719yrs112
Number of times 15 was a winning Mega Millions numberr=0.4920yrs112
Master's degrees awarded in Theology and religious vocationsr=0.6210yrs112
Popularity of the first name Rikkir=0.5120yrs111
Automotive recalls issued by Mack Trucksr=0.4620yrs110
Popularity of the first name Francescar=0.520yrs110
Air pollution in Lancaster, Pennsylvaniar=0.4720yrs110
Number of times 1 was a winning Mega Millions numberr=0.4818yrs109
Number of times 5 was a winning Mega Millions numberr=0.4818yrs109
Sewage sludge used for fertilizer in the USr=0.5313yrs108
Votes for Republican Senators in Pennsylvaniar=0.636yrs108
How fun PBS Space Time YouTube video titles arer=0.718yrs106
Associates degrees awarded in Dental assistingr=0.5811yrs106
Global Apple iPhone Sales in Q3r=0.5812yrs105
Warner Bros. Discovery's stock price (WBD)r=0.4817yrs105
Annual growth rate of US Real GDPr=0.4520yrs104
Votes for Republican Senators in Pennsylvaniar=0.586yrs100
Number of articles Matt Levine published on Bloomberg on Wednesdaysr=0.569yrs99
Number of times 3 was a winning Mega Millions numberr=0.4618yrs96
The number of movies Emma Stone appeared inr=0.5716yrs95
Baidu's stock price (BIDU)r=0.4817yrs95
Customer satisfaction with TJ Maxxr=0.4914yrs95
Customer satisfaction with HuffPostr=0.5111yrs95
Number of home runs hit by Matt Kempr=0.4915yrs94
Total length of LEMMiNO YouTube videosr=0.6711yrs94
Popularity of the 'thanks obama' memer=0.5416yrs90
Kerosene used in Canadar=0.5320yrs84
The number of movies Julianne Moore appeared inr=0.5120yrs80
Popularity of the first name Taliar=0.4920yrs78
Popularity of the 'i dont always' memer=0.4917yrs74
Bachelor's degrees awarded in Communications technologiesr=0.5710yrs74
How fun AsapSCIENCE YouTube video titles arer=0.611yrs73
Jet fuel used in Venezuelar=0.5219yrs72
The number of movies Ralph Fiennes appeared inr=0.5120yrs70
Popularity of the first name Nealr=0.4920yrs68
Google searches for 'burn centers'r=0.4519yrs64
Total views on PBS Space Time YouTube videosr=0.668yrs59
The number of movies Ryan Reynolds appeared inr=0.520yrs58
Renewable energy production in Uzbekistanr=0.4819yrs58
Popularity of the 'whip nae nae' memer=0.588yrs58
Associates degrees awarded in Clinical/medical lab sciencer=0.511yrs54
Popularity of the first name Marjorier=0.4520yrs52
Liquefied petroleum gas used in Turkiyer=0.4920yrs48
How clickbait-y PBS Space Time YouTube video titles arer=0.648yrs46
The number of movies Jeremy Renner appeared inr=0.4820yrs46
Rating for best Need for Speed game releasedr=0.5211yrs44
Popularity of the 'dumb ways to die' memer=0.4817yrs42
Global count of Health & Fitness Clubsr=0.5111yrs39
Hydopower energy generated in Uzbekistanr=0.4719yrs37
How 'hip and with it' LockPickingLawyer YouTube video titles arer=0.648yrs36
The number of movies Sean Astin appeared inr=0.4620yrs32
Popularity of the 'harambe' memer=0.537yrs30
Hydopower energy generated in Romaniar=0.4619yrs26
How trendy LockPickingLawyer YouTube video titles arer=0.638yrs24
Viewership of "The Big Bang Theory"r=0.5612yrs17
Jet fuel used in Mauritaniar=0.4819yrs16
Total views on MinuteEarth YouTube videosr=0.5910yrs10
Wind power generated in Vanuatur=0.5712yrs5
Average viewer count per season of "How I Met Your Mother"r=0.549yrs-1
Petroluem consumption in Naurur=0.4719yrs-6
How insightful Technology Connections YouTube video titles arer=0.568yrs-6
Gasoline pumped in Taiwanr=0.4619yrs-18
Total comments on LEMMiNO YouTube videosr=0.5211yrs-19
Average length of Vihart's YouTube videosr=0.4914yrs-30
Wind power generated in Puerto Ricor=0.5112yrs-34
How professional-sounding Vihart's YouTube video titles arer=0.4914yrs-40
Hydopower energy generated in Serbiar=0.4816yrs-44
Average number of comments on Computerphile YouTube videosr=0.5210yrs-50
How provocative CGP Grey YouTube video titles arer=0.512yrs-61
Total likes of MinuteEarth YouTube videosr=0.5110yrs-72
How nerdy LockPickingLawyer YouTube video titles arer=0.528yrs-82
How geeky LockPickingLawyer YouTube video titles arer=0.528yrs-92


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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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