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The Chartive in-house editorial team.

Economy
When the oldest Baby Boomers turned 45, in 1991, their generation held 20.9% of all US household wealth. When the oldest Millennials turned 45, in 2026, theirs held 11.0%.

Climate
From 2007 to 2021 the United States added 19 terawatt-hours of annual electricity demand — half a percent in fourteen years. Since 2021 it has added 343, more than Britain uses in a year.

Demographics
In 1960 about a third of humanity lived in towns and cities. In 2007 the share passed half for the first time, and it is now 58%. It is a threshold our species crosses only once.

Technology
Disk storage has become about 8 billion times cheaper since 1956 — and that is after adjusting for inflation, in constant 2020 dollars. Computer memory fell even further, by a factor of about three and a half trillion.

Health
Global measles coverage among one-year-olds rose from 16% in 1980 to 84% in 2024 — one of the largest public health gains ever recorded. But the climb stopped around 2010, and coverage has still not regained its 86% peak of 2018.

Economy
In 1960 the United States produced 40% of everything the world made; today it is 26%. China went from 3.6% in 2000 to 16.5%. Japan climbed to 18.2% by 1994 and then fell back to 3.7% — almost exactly where it started.

Society
There were 154 million people living outside their country of birth in 1990. By 2024 there were 303 million — almost exactly double. But because the world's population grew too, the share living abroad rose only from 2.88% to 3.73%.

Economy
Across the 14 rich countries with records back to 1870, the median worker put in 3,138 hours a year. Today it is 1,561 — almost exactly half. Every one of them now works less than a 40-hour week all year would imply.

Health
Each dot is one of 193 sovereign states or 24 territories with data. Every single one of the 217 sits above the line where the two sexes would live equally long — but the gap runs from five months in Togo to more than ten years in Russia.

Technology
24,865 objects have been launched into orbit since Sputnik in 1957. Nearly two thirds of them went up after 2019, and 2025 alone accounted for 4,510 — more than the entire first 36 years of spaceflight combined.

Climate
At its yearly minimum in 1979, Arctic sea ice covered 7.1 million square kilometres. In 2025 it was 4.7 — a fall of 33%, and a loss roughly the area of Greenland.

Health
The share of adults using tobacco fell from 34.8% in 2000 to 20.3% in 2024 — a drop of 42% in a single generation. India more than halved, Norway and Britain cut theirs by two thirds, while France barely moved and smoking rose in Egypt and Lebanon.

Economy
In 1983, 16.8% of American private-sector workers belonged to a union. By 2025 that had fallen to 5.9% — the lowest on record — while the rate among government workers barely moved.

Economy
In the 2025 fiscal year the federal government paid $970 billion in net interest on its debt, against $5.24 trillion in revenue — 18.5% of everything it took in, the highest share in records going back to 1940.

Health
The share of adults worldwide with a body mass index of 30 or more rose from 5.0% in 1980 to 16.4% in 2024. Every country has risen — but by wildly different amounts.

Demographics
In 1960 the average South Korean woman had 6.0 children. By 2023 the figure had fallen 88% to 0.72 — the lowest rate ever recorded for a country. In 2024 it rose for the first time in nine years.

Society
Worldwide, higher education went from strongly male to majority female, passing equal numbers in 2001. Women now outnumber men in 132 of the 155 countries and territories with recent data — but the exceptions are two very different stories.

Economy
In 1989 the wealthiest 1% of American households held 22.8% of all net worth and the bottom 90% held 39.2% — a gap of 16 percentage points. That gap has almost closed: 31.6% against 32.1%.

Climate
Each stripe is one year's global temperature from 1850 to 2025 — blue for cooler, red for hotter than the pre-industrial average. The ten hottest years on record have all come since 2015.

Technology
Cost to launch one kilogram to low Earth orbit, by rocket (inflation-adjusted). SpaceX's reusable Falcons cost around $1,500–2,600/kg — a fraction of the Space Shuttle's $65,000 and of nearly every rocket before them.

Society
Americans spent 6.82 waking hours a day alone in 2025, up from 5.61 in 2010. Teenagers now spend 43% more time alone than they did in 2010, and 25–34-year-olds 45% more — while time with friends has been cut in half.

Economy
Since January 2000, U.S. hospital care has nearly quadrupled in price and college tuition tripled, while TVs, toys and software collapsed. Average hourly wages rose 133% — beating overall inflation, but far behind the essentials.

Economy
After inflation, U.S. home prices climbed 96% between 1987 and 2024 while the median household income rose just 30% — pushing real prices above even the 2006 bubble.

Economy
World military spending, adjusted for inflation, fell after the Cold War — but has since climbed to a real record of about $2.8 trillion in 2025, the steepest sustained rise in decades.

Health
In 2022 the U.S. spent $13,062 per person on health — more than any OECD country — yet its treatable-mortality rate (95 deaths per 100,000) was higher than 27 other members.

Society
The leading causes of death in the U.S., next to how often the news writes about them. We fixate on the rare — and ignore the common.

Society
If a whole life of 79 years followed the average American's day, this is roughly how the years add up — nearly a third of it asleep, and more than half sleeping or working.

Health
Life expectancy at birth worldwide rose from about 46 years in 1950 to 73 in 2023 — one of humanity's great gains. COVID-19 caused the first global setback in a generation, before the trend resumed.

Demographics
Demographers estimate about 117 billion members of our species have ever been born. The 8 billion alive today are only about 7% of them — the other 93% came before us.

Economy
We treat a million, a billion and a trillion as close cousins. They are not — each is a thousand times the last. Counted one per second, the gap becomes almost unimaginable.

Technology
In 2000 the world's biggest companies were oil, retail, pharma and industry. By 2026 the top of the list is almost entirely technology and AI — and only Microsoft is still there.

Health
Fentanyl drove U.S. drug-overdose deaths to a record of about 109,000 in 2022. By 2024 they had fallen roughly 26% — the steepest decline on record.

Climate
Share of new cars sold worldwide that are electric — battery-electric or plug-in hybrid. In 2010 it was about 1 in 8,000; by 2025 roughly one in four new cars had a plug.

Health
Health spending per person vs life expectancy across 57 countries in 2023. The U.S. spends about $12,100 a head — the most of any country — yet 31 nations that spend less live longer.

Economy
How many times more the average big-company CEO is paid than a typical U.S. worker — up from about 21-to-1 in 1965 to roughly 325-to-1 in 2025, after peaking at 408-to-1 in 2021.

History
Warheads in military stockpiles. Cold-War rivalry drove the American and Soviet arsenals to about 64,000 combined by the mid-1980s; they have since fallen by roughly 85%, though thousands remain.

Society
The share of people who can read and write has risen from about 12% in 1820 to roughly 88% today — from one in eight adults to nearly nine in ten.

Climate
CO₂ emissions per person in 2023. China and India lead on total emissions, but per head the average American emits about seven times an Indian — and roughly 1.7 times someone in China.

Economy
What it takes to finance a median-priced new U.S. home, 1975 vs. 2024.

Demographics
50 years of change in the world's megacities: from 8 in 1975 to 33 in 2025, most of them now in Asia.

Demographics
Children made up 37.4% of the world in 1960. In 2025, they make up 24.4%. Population ages 0–14 as a share of total population, selected countries.

Economy
Change in selected U.S. Consumer Price Index categories, using annual averages for 2000 and 2025.

Economy
Real economic output per person rose much faster than the median person’s inflation-adjusted money income over the last 50 years.

Technology
How long every iPhone generation has been supported, from the original iPhone to the iPhone 17.

Society
The most common combinations of four traditional milestones among U.S. adults ages 25–34, 1975 vs. 2024.

Economy
Six years on, total online job postings sit just 2% above their February 2020 level — but the mix has been turned inside out. Demand for screen-based work has collapsed, while hands-on, care and infrastructure work has boomed.