arcade_revenue          'Total revenue generated by arcades' correlates
                        with 'Computer science doctorates awarded in
                        the US'
cheese_consumption      'Per capita cheese consumption' correlates with
                        'Number of people who died by becoming tangled
                        in their bedsheets'
chicken_consumption     'Per capita consumption of chicken' correlates
                        with 'Total US crude oil imports'
divorce_rate_maine      'Divorce rate in Maine' correlates with 'Per
                        capita consumption of margarine'
fishing_boat_drownings
                        'People who drowned after falling out of a
                        fishing boat' correlates with 'Marriage rate in
                        Kentucky'
japanese_cars_sold      'Japanese cars sold in the US' correlates with
                        'Suicides by crashing of motor vehicle'
math_doctorates         'Mathematics doctorates awarded' correlates
                        with 'Uranium stored at nuclear power plants'
miss_america_age        'Age of Miss America' correlates with 'Murders
                        by steam, hot vapours and hot objects'
mozzarella_consumption
                        'Per capita consumption of mozzarella cheese'
                        correlates with 'Civil engineering doctorates
                        awarded in the US'
norway_oil_imports      'US crude oil imports from Norway' correlates
                        with 'Drivers killed in collision with railway
                        train'
pool_drownings          'Number of people who drowned by falling into a
                        pool' correlates with 'Films Nicolas Cage
                        appeared in'
space_launches          'Worldwide non-commercial space launches'
                        correlates with 'Sociology doctorates awarded
                        in the US'
spelling_bee_letters    'Letters in the winning word of the Scripps
                        National Spelling Bee' correlates with 'Number
                        of people killed by venomous spiders'
swimming_pool_drownings
                        'Number of people who drowned while in a
                        swimming-pool' correlates with 'Power generated
                        by US nuclear plants'
us_spending             'US spending on science, space, and technology'
                        correlates with 'Suicides by hanging,
                        strangulation and suffocation'
