No one picked up on this then ?
If that is true, then there are actually 140,000 boats , so if C&RT are claiming only ~30,000 licences are issued they actually have a huge licence evasion figure - not the 2 or 3% they publish.
How do you work that out? To me it says that at some (indeterminate) time here were 28,000 people living on boats, and that it has increased to 35,000. 30,000 boats means for 35,000 people means either that most are occupied by only 1 person, or more likely that a significant proportion of boats are not liveaboards