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What strange things do people search for on Google? How does income tax affect migration patterns? What features are popular in which type of homes?

At the City-Data Blog, our writers utilize data to answer questions you never knew you had. From silly, light-hearted investigations to powerful economic examinations, we cover a range of topics that anyone can enjoy! Our writers, many of them Ph.D. graduates or candidates, create easy-to-read articles on a wide variety of topics.

Deaths from influenza and pneumonia in the U.S.

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Pavel Prikhodko, Ph.D. Machine Learning

Influenza (commonly called the flu) is one of (if not the most) common infectious diseases in the world. The symptoms of the flu including cough, a sore throat, runny nose, fever, headache and muscle pains.

Many people take specific measures to prevent becoming sick with the flu during the high flu season. Some of the most popular measures to prevent influenza include getting plenty of rest, frequent hand washing and maintaining a healthy diet. However, according to the Centers for Disease Control and Prevention (CDC), the best way to prevent the flu is through vaccination.

Influenza is also a common cause of pneumonia. The symptoms of both diseases are similar, with pneumonia being a more serious infection of the lungs and carrying a higher risk of death.

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Sales of hearing aid units in 2015

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Pavel Prikhodko, Ph.D. Machine Learning

Hearing loss refers to the partial or total inability to hear. Its effects can be temporary or permanent and can develop suddenly or develop gradually over time. Statistically, men are almost twice as likely as women to experience a loss in hearing. Hearing loss may be hereditary, part of the aging process or be triggered by overexposure to excessive noise. Birth complications, bacterial or viral infections, injuries or physical traumas to the ear or head and negative effects of certain medications and toxins all commonly contribute to hearing loss.

Hearing aids are a type of device used to improve a person’s ability to hear when hearing loss occurs. On the graph below, you’ll find the percentage of hearing aids each retailer sold in America’s private hearing aid market in 2015. According to information published at Statista.com, 50 percent of the total unit sales were generated by small chains or independent channels.

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Glencore: some numbers about the mining industry giant

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Pavel Prikhodko, Ph.D. Machine Learning

Glencore plc (Global Energy Commodity Resources) is an Anglo-Swiss multinational commodity trading and mining company headquartered in Baar, Switzerland — this company is the world’s largest player in the mining industry and commodity trading.

Glencore has a number of production facilities all around the world and supplies metals, minerals, crude oil, oil products, coal, natural gas and agricultural products to international customers in the automotive, power generation, steel production and food processing industries. In May of 2013, Glencore plc was newly formed through a merger of Glencore with Xstrata.

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The “cheesiest” states in the country

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Pavel Prikhodko, Ph.D. Machine Learning

No one can say that the United States doesn’t love cheese — in 2015, the U.S. ranked second in the world among the major cheese producers. Only by the European Union (EU) produced more cheese in this year (7 million metric tons).

Let’s analyze the top 10 cheese-producing states in the U.S. in 2016. As you may have guessed, Wisconsin was the undisputed market leader, producing approximately 3.23 billion pounds of cheese. California produced 2.51 billion of pounds cheese in 2016, making it the second largest producer, while Idaho took third, producing about 941.68 million pounds of cheese.

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Social media marketing in the U.S.

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Pavel Prikhodko, Ph.D. Machine Learning

At the very beginning, social media started as an entertainment tool — however, it has since evolved into a powerful marketing tool. Social media marketing is on the rise as this type of media gains importance in the industry and shows potential for further development.

Social media marketing is increasingly being used in business to attract attention and gain website traffic. In the current age, social media has become a crucial part of digital communications strategies. According to the statistics, online adults from 18 to 34 years old are the most likely follow a brand via social networking (95 percent of the respondents).

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The number of American hunters is declining

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Pavel Prikhodko, Ph.D. Machine Learning

Hunting in the United States is undeniably popular — some say that more Americans hunt and shoot than play baseball. In 2016, there were 14.84 million paid hunting license holders in the country. According to information published at Statista.com illustrating the number of hunters within the last 12 months in the U.S., a total of 16.55 million people went hunting in spring 2013. Autumn 2013 saw about 17.19 million hunters in the past 12 months, which increased slightly in spring 2014 (17.39 million hunters). This upward trend continued into autumn 2014, when 17.45 million people went hunting in the past 12 months.

However, the growth stopped in spring 2015; the number of people who went hunting in this period amounted to 16.67 million. The decline continued through autumn 2015 and spring 2016, both of which saw 16.61 million hunters in the previous 12 months. Autumn of 2016 saw an even smaller number of hunters: 16.42 million.

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Dangerous studying: statistics on college sports injuries

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Pavel Prikhodko, Ph.D. Machine Learning

Many people name their own reasons why college time is the best time of your life — but even the best time of your life can be dangerous. In this post, we’ll examine the average annual estimates on the number of injuries in sports competitions and practices by gender (based on 25 championship sports in the United States). From 2009 to 2014, the average annual number of sports injuries for both genders combined amounted to 210,674 (76,176 occurred in competition and 134,498 in practice).

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The land is on fire – number of wildfires and burning acres

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Pavel Prikhodko, Ph.D. Machine Learning

According to Statista.com, a total of 67,740 wildland fires were recorded in the United States in 2016. In comparison, this number was higher in the previous year, which saw 68,151 land fires. In 2014, the number of wildland fires amounted to only 63,312. About 5.51 million acres of land burned due to wildland fires in 2016, a sharp decrease from the 10.13 million acres burned in 2015. In 2014 and 2013, the numbers were even smaller — just 3.6 million acres were burnt in 2014, and 4.3 million acres were destroyed in 2013.

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Should you rent out your space on Airbnb year round?

Andrey Kamenov

Andrey Kamenov, Ph.D. Probability and Statistics

To anyone considering renting out their property on Airbnb, there is one extremely important question: How often will my property be rented? Sure, the daily rate may seem attractive for many, but if you don’t attract a lot of guests, the whole offer may not be near as lucrative.

On average, the occupancy rate (the percentage of time your property is rented — and makes you money) hovers at just below 50 percent in the U.S. This, of course, largely depends upon your pricing strategy as well as the property’s location.

Another important factor that may influence your decision to create a listing on Airbnb is whether you would have guests year round. In some cases, it may be a wiser choice to make your space available for just a few months each year.

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Migraine problems in the United States

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Pavel Prikhodko, Ph.D. Machine Learning

During a survey conducted over the internet from May to June 2016, American migraine patients were asked about their most common migraine symptoms. The largest share of the respondents (93 percent) stated that they had head pain. About 89 percent of the respondents suffered from sensitivity to light, while 83 percent experienced sensitivity to sound. Approximately 77 percent had difficulty concentrating and 72 percent suffered from fatigue. Sensitivity to smells and neck pain were also common symptoms, named by 72 percent and 67 percent of migraine sufferers respectively.

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