There isn’t one answer to this question as it pretty literally depends on the location.
For instance, Tokyo’s photogrammetry is from September 2014, as I recognized a Destiny billboard that was up only then in Akihabara lol.
Another example is Naha airport in Okinawa. Half of it is from circa 2018 when the artificial island for the second runway was almost constructed. The other half is from before it was started in 2014. Spit right in the middle haha…
It really depends on where you are. Some is fairly new, some is fairly old.