Key Takeaways
- In 2023, the global average life expectancy at birth for individuals was 73.4 years, with variations by gender where females averaged 76.1 years and males 70.8 years.
- As of 2022, the world population of individuals aged 65 and older reached 761 million, representing 9.9% of the total global population.
- In the United States, the median age of individuals in 2023 was 38.9 years, up from 38.5 in 2022.
- Global median household income for individuals in purchasing power parity is $10,000 annually in 2023.
- In the US, median personal income for individuals aged 25+ was $45,160 in 2022.
- Global wealth per adult individual averaged $84,718 in 2023.
- Worldwide literacy rate for individuals aged 15+ is 87% in 2023.
- In the US, 89% of individuals aged 25+ have high school diploma or higher in 2023.
- Global tertiary enrollment rate for individuals is 40% in 2023.
- The average adult human brain weighs 1.4 kilograms and contains about 86 billion neurons.
- Worldwide, 1 in 6 individuals experiences infertility, affecting 48 million couples in 2023.
- In the US, 41.9% of adults had obesity (BMI ≥30) in 2023 data.
- Daily social media usage averages 2.5 hours per individual globally in 2023.
- 85% of individuals own a smartphone worldwide in 2023.
- Average daily TV watching time is 2.8 hours per individual in the US.
In 2023, people are living longer while populations age, inequality persists, and health challenges rise worldwide.
Demographics
Demographics Interpretation
Economic Status
Economic Status Interpretation
Education and Skills
Education and Skills Interpretation
Health and Wellness
Health and Wellness Interpretation
How We Rate Confidence
Every statistic is queried across four AI models (ChatGPT, Claude, Gemini, Perplexity). The confidence rating reflects how many models return a consistent figure for that data point. Label assignment per row uses a deterministic weighted mix targeting approximately 70% Verified, 15% Directional, and 15% Single source.
Only one AI model returns this statistic from its training data. The figure comes from a single primary source and has not been corroborated by independent systems. Use with caution; cross-reference before citing.
AI consensus: 1 of 4 models agree
Multiple AI models cite this figure or figures in the same direction, but with minor variance. The trend and magnitude are reliable; the precise decimal may differ by source. Suitable for directional analysis.
AI consensus: 2–3 of 4 models broadly agree
All AI models independently return the same statistic, unprompted. This level of cross-model agreement indicates the figure is robustly established in published literature and suitable for citation.
AI consensus: 4 of 4 models fully agree
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
Catherine Wu. (2026, February 13). Individual Statistics. Gitnux. https://gitnux.org/individual-statistics
Catherine Wu. "Individual Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/individual-statistics.
Catherine Wu. 2026. "Individual Statistics." Gitnux. https://gitnux.org/individual-statistics.
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