The continent of Asia covers 29.4% of the Earth's land area and has a population of around 4.5 billion (as of 2015), accounting for about 60% of the world population. The combined population of both China and India are estimated to be over 2.7 billion people as of 2015.
Asian population is projected to grow to 5.26 billion by 2050, or about 54% of projected world population at that time.Population growth in Asia was close to 1.2% p.a. as of 2015, with highly disparate rates, many West Asian countries showing growth rates above 2% p.a., and notably Pakistan at 2.4% p.a., offset by a growth rate below 0.5% p.a. in China.
The Human Development Index of Asian countries range from Low to Very High category. The table below shows the 10 highest and lowest countries according to their Human Development Index scores based on the 2015 report.