This is the monthly takes of all quizzes on JetPunk by language (current featured languages only).
The number of marriages in England and Wales has declined precipitously over the last few decades.
Over time, the percentage of adults with a BMI over 30 has increased in all three countries.
The number of quizzes taken on JetPunk has grown steadily since the site was founded.
Flying is incredibly safe. Despite a huge increase in air travel, the number of airline crash fatalities has declined by large amounts.
Most of the German soldiers who died in WWII died in late 1944 and early 1945.
The number of people gaining permanent residency in the United States has increased by huge amounts since WWII.
The number of men age 25–54 who don't have jobs has more than tripled in the last seventy years.
This chart demonstrates estimates of the nuclear weapon stockpiles of countries throughout history
Since peaking in 1950, the city of Chicago has lost nearly 1 million residents. For a long time, the urban area continued to grow while the city shrank. Now the urban area is shrinking as well.
This chart shows the number of living former presidents.
Cars are getting safer. Since peaking in 1937, the rate of people who die as a result of motor vehicle accidents in the United States has declined by 60%.
Fertility rates in France and the United Kingdom tell the stories of their respective countries.
Starting from very high levels, the U.S. fertility rate sank to below replacement levels by 1933. The end of WWII saw a new baby boom, but fertility rates quickly fell again and are now near their lowest levels ever.
Coal production in the U.S. has fallen by large amounts in recent years as the fracking boom has made natural gas more affordable.
Wikipedia's expenses have grown by 69% per year since 2004.
For most of human history, economic growth was small or non-existent. Then the Industrial Revolution happened and everything changed.
The difference between the men's and women's world record times is about 10% at every distance.
The rate of workers who die on the job has steadily decreased over time. However, the vast majority of dangerous jobs are still performed by men.
The percentage of the world's population living in extreme poverty has declined by huge amounts since 1981.
The percentage of working-age Americans receiving Social Security Disability benefits as a percentage of the labor force has increased by a factor of ten since 1960.
Good governance matters. Botswana has become much wealthier while neighboring Zimbabwe has languished.
The percentage of NHL players who are Canadian has fallen by large amounts.
Life expectancy has increased in nearly every country, but the rate of increase has varied by country.
Unemployment rates in Greece have soared to levels far above the United States, France, and Japan.
While sheep still outnumber people 5 to 1, the human population is increasing while the sheep population is falling. In future decades there may be more people in New Zealand than there are sheep.
This chart shows the number of air passengers as a percent of the world population. For example, if the number is 50% that means that the average person in the world flies once every two years.
Both the Republican and Democratic parties have received 40%–60% of the popular vote in nearly every Presidential election since 1860.
The population of Syria decreased for several years as people fled to escape the civil war. It is now growing again.
The population of England crashed during the Black Death, but experienced explosive growth during the 1800s.
Throughout decades of turbulence and warfare, the population of Iraq continued to grow at an extremely high and consistent rate.
The population of Cambodia declined during the regime of Pol Pot, but has since rebounded to all-time highs.
The population of Ireland is still lower than it was before the Great Famine of the 1800s.
This chart shows the number of women who are in the workforce as a percentage of the number of men in the workforce.
Russia and Japan have both experienced falling populations due to low birth rates.
Because of fracking, crude oil production in the U.S. has risen to all-time highs.
Fertility rates in most Western countries are well below replacement. India's birth rate has fallen dramatically. But birth rates in Africa remain high.
The federal debt as a percentage of GDP, after falling post WWII, has soared to reach all-time highs.
Spending on Medicare, Medicaid, and Social Security has increased drastically and now represent a cost of nearly 10% of the U.S. GDP.
Inflation in the United States has surged in the last two years and has now reached the highest rates since 1981.
After declining in the first half of the 20th century, immigration to the United States has risen considerably in recent years.
The size of the U.S. military is a story of the history of the United States.
Throughout written history, Asia has been by far the most populous continent. However, explosive growth in Africa may change that by the end of the 21st century.
The population of the city of Rome fell to remarkably low numbers during the Middle Ages before rebounding in modern times.
India is on pace to pass China as the country with the world's largest population.
After increasing rapidly in the 1980s and 1990s, the incarceration rate in the U.S. has peaked and is now falling.
The city of Seattle now has more residents than the city of Detroit as the economy continues to shift from manufacturing to technology.
Wine production has fallen in France but has increased in the United States.
New York City's murder rate skyrocketed in the late 1960s, stayed high for two decades, but plummeted in the 1990s. Today, New York City is one of the safer large cities in the United States.
Murder rates in New York City and Los Angeles have generally trended downwards, while murder rates in Detroit and Chicago have remained stubbornly high.
Since 1970, American carbon dioxide emissions have remained relatively flat, European emissions have fallen, but Chinese emissions have grown dramatically. Today, Chinese is responsible for more carbon emissions than the United States and European Union combined.
Many American cities saw a decline in population following 1950 as residents moved to the suburbs. Some cities have rebounded. Others have not. Here are a few of the cities whose populations have declined most dramatically.
These three major cities all experienced a population decline at some point in the second half of the 20th century. But, in the early 21st century, their population started to grow again.
After falling sharply in the 1970s, the population of New York City rebounded to reach an all-time high in 2016. Since then, the population has started to decline again.
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