China

As of 2012, China possessed the world's largest population with over 1.34 billion people. Since the implementation of family planning policies in the early 1980s there has been a dramatic decrease in the average annual population growth rate. Between 2000 and 2010, the population increased at a rate of 0.57 percent, half the rate of the previous decade. The slow population growth rate and longer life expectancy have altered the country's age distribution. Data from the World Health Organization (WHO) reported that, in 2010, people over 60 represented 13.3 percent of the entire Chinese population.

The percentage of people aged 14 or below dropped from 23 percent to 17 percent between 2000 and 2010. It is estimated that 24 percent of the country's population will be ...