Hi from Argentina! I think we have a very similar system. 110 years ago men got their national ID number at 18 (during conscription) and women didn't have a register until 30 year later (~1940).
(And when women got it, many lied to appear to be younger, like my gran-grandma that drop 4 years.)
First look at the data.
Remember the cause of at least 4 blue zones was bad data. Pension fraud in Italy, record loss in Okinawa etc.
that's interesting. how did you find that?
https://www.ucl.ac.uk/ioe/news/2024/sep/ucl-demographers-wor...
Hi from Argentina! I think we have a very similar system. 110 years ago men got their national ID number at 18 (during conscription) and women didn't have a register until 30 year later (~1940).
(And when women got it, many lied to appear to be younger, like my gran-grandma that drop 4 years.)
So, expect a lot of unreliable data.
interesting! hi!