One wonders where they possibly could get such a statistic from. If a few blokes start taking down numbers in Greece and get banged up I can't believe the world's airforces are going to email BA with their latest supersonic hours tally.
What's behind this is how truly wonderful Concorde is. Other aircraft can do some of what it can do but none can do it so routinely and continuously - not to mention first class standards including fine wine and food.
The SR71 is amazing but so expensive even the Americans can't afford to fly it.
Concorde was a great feat, even if it didn't quite hit the mark.
Be proud.