The phrase "year existence" refers to the amount of time something or someone has been alive or active for.
Sentences with «year existence»
We have been a family owned business for our entire 50 + year existence. (edmunds.com)
That's one example of approximately 10 clients we've had over our firm's 3 year existence who came to us solely from the website. (lawyermarketing.com)
While Bitcoin may have revolutionized the way we look at transactions and banking, the brief nine - year existence of cryptocurrencies has been checkered with some monumental hackings and thefts. (links2exchange.net)