MarketWatch reports that by 2050, the world’s population of centenarians (people who are 100 years old or older) will grow to eight times its current size, according to a recent analysis by the Pew Research Center. In 2015, there are 7.4 centenarians for every 10,000 older adults (those age 65 or older) in the world. By 2050, there will be an estimated 23.6.
Life expectancies have been rising for decades, thanks to better living conditions, advances in healthcare, and other factors. There are now almost half a million centenarians in the world, four times the number alive in 1990. By 2050, China will likely have the largest population of centenarians, followed by India and the United States—where there will be an estimated 9.7 centenarians per 10,000 people.