A time and a place for accurate numbers
I saw an accomplished scuba diver being interviewed the other day and one of the opening questions was: how many dives have you done over the years? She hesitated for some time and then began saying how she hadn’t kept accurate logs, etc.
If you find yourself being asked for numbers or statistics - consider the context. If a business reporter is asking for productivity statistics and you don’t have them at your fingertips, you don’t want to give approximations or anything that might be misleading. Simply say that you don’t know and offer to get those figures as soon as possible.
In the case of the diver, the details aren’t important. We just want to know a rough number of dives - has it been hundreds, thousands? Having complete logs may be important for you as a scuba diver, but your audience doesn’t demand that kind of accuracy.
And since someone asked about it once, have an answer about total dives ready for your next interview.