Per capita is a Latin term that means “by head.”When applied to economics or statistics, its usage means, “average per person.” It can replace “per person” in any number of measurements. Perhaps the most common context is when the term refers to the reporting of certain economic data. For example, per capita is frequently used to report a country’s economic output. In one recent year, the United States had a population of around 313,400,000 people and a gross domestic product, which measures the total output of an economy, of close to $15.1 trillion. Its GDP per capita that year equaled about $48,000. Per capita figures can be used to compare one nation’s GDP to another’s. If a nation’s per capita GDP rises, it signals increases in production and growth in the economy. Investors can also use per capita figures to gauge a company’s efficiency or how a certain investment may fare.