CHRISTIANITY UNIVERSITY, Pa.

— The rich live longer, with a median life expectancy of more than 85 years.

The middle class lives longer than the poor.

The top 20% of the world has a median lifespan of about 78 years, while the bottom 20% lives for about 47.

In other words, a middle class American will live longer than a rich European or Asian man.

But even as the rich are living longer, the middle class is shrinking.

The United States has the third-highest number of people with less than $15,000 in wealth, down from 24.5% in 2009, according to a report from the Pew Research Center.

The average income in the United States was $51,091 in 2010, compared to $68,878 in 2008, according a study from the International Monetary Fund.

The report is based on information from the World Health Organization, United Nations Population Division and World Bank, which is not a government body.

It says, however, that the world is getting richer, but the richest are growing poorer.

It is also worth noting that there is a big disparity in life expectancy across regions.

In North America, the median life span is 80.8 years, and the median wealth is about $60 million, or a little more than $500,000.

In Asia, the richest 1% lives on average 81.3 years, with the median $50 million wealth.

In Africa, it is 81.1, while in Europe, it was 81.2.

In Latin America, it drops to 82.5, and in South America it drops down to 78.5.