Human Progress has updated data on life expectancies from the period 1960 to 2015.
Marian Tupy writes:
Even the world's poorest regions have experienced significant improvements in life expectancy. South Asia, for example, comprises Afghanistan, India, Pakistan, Bangladesh, Sri Lanka, Nepal, Bhutan and Maldives, and is home to 1.8 billion people. The region saw its life expectancy skyrocket by an extraordinary 26.5 years, or 63 percent. The world average, in contrast, rose "only" by 19.12 years, or 37 percent.