While the concept may be familiar and seemingly simple, the nuances of its calculation are far from it. Life expectancy is actually a statistical measure of how long a person may live based on a multitude of demographic factors like the year they were born, their current age, and even their sex. While in mathematical terms life expectancy refers to the expected number of years of life remaining for an individual at any given age, expectancy estimates are often given as life expectancy at birth.
Life Expectancy Comparisons
Life expectancy figures are perhaps most interesting in relative terms. We might consider how life expectancy has changed over the years or how life expectancies differ between the sexes. Perhaps we are more interested in the differences in life expectancy estimates in different regions or countries, which is where global life expectancies come in.
Here we will look at the trends in life expectancy in countries with the best (highest) and worst (lowest) life expectancies over the last ten years.
Top 10 Countries With Best Life Expectancy: Then and Now
Let’s see how global life expectancy figures by country have changed in the years since 2006.
Here are the bottom ten countries with the shortest life expectancies in 2006 and as of 2017.
Here are the life expectancy numbers for some of those notable countries that didn’t make the top ten.
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