Click and slide on the year to backtrack and fast-forward the timeline, and hover over each bubble to see the country and population.
Worldwide, the average life expectancy at birth was 71.0 years (68 years and 6 months for males and 73 years and 6 months for females) over the period 2010–2013 according to United Nations World Population Prospects 2012 Revision, or 70.7 years (68.2 years for males and 73.2 years for females) for 2009 according to The World Factbook. According to the World Health Organization (WHO), women on average live longer than men in all countries, with the exception of Tonga.
Comparisons of national wealth are frequently made on the basis of nominal GDP and savings (not just income), which do not reflect differences in the cost of living in different countries (see List of countries by GDP (nominal) per capita); hence, using a PPP basis is arguably more useful when comparing generalized differences in living standards between nations because PPP takes into account the relative cost of living and the inflation rates of the countries, rather than using only exchange rates, which may distort the real differences in income. This is why GDP (PPP) per capita is often considered one of the indicators of a country's standard of living, although this can be problematic because GDP per capita is not a measure of personal income. (See Standard of living and GDP)
Featured on graphme
Original credit to Mike Bostock. I added formatting.
Modified http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js to a secure url
Modified http://d3js.org/d3.v3.js to a secure url
https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js
https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js
https://d3js.org/d3.v3.js
https://cdnjs.cloudflare.com/ajax/libs/d3-tip/0.6.3/d3-tip.min.js