https://www.bloomberg.com/news/artic...or-older-folks
"The world’s working-age population is shrinking faster than expected, leaving fewer people to support a growing number of seniors, according to the
Bloomberg Sunset Index.
Conventional measures of old-age dependency calculate the ratio of people ages 65 and older with those of working age: 15 to 64. But many people stop working well before 65: Men in 66 percent of the 178 countries Bloomberg evaluated and women in 78 percent can begin receiving retirement benefits earlier."