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 reg

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.