Interesting to see hard numbers for this, I always felt like those LOTR elves living for 10,000 years in a war torn world is laughably improbable from a statistical perspective.
Tolkien's elves were also (somewhat?) magic, and the designated firstborn of the creator god Ilúvatar with various gifts, seemingly including awareness and dexterity exceeding anything a human could ever do.
Current global median life expectancy: 75.2 years
LE/I%: ~958 years.
https://en.wikipedia.org/wiki/List_of_causes_of_death_by_rat...
Same but assuming we can avoid transport accidents, ~1354 years.