Edit: apparently I can't count. Sorry. Original response:maybe? I would say it depends on whether there is decent definition of what makes a lake - a lake. Because if it is just an inland body of water then every raindrop would form a new lake (that might eventually join together into something larger)
Now that you mention it I realise I misread the question. I thought it said more shark attacks *than*
and the joke was that because "or" is used instead of "and", the answer was Jaws despite it being listed in the question.
I think the truth is somewhere in the middle... it is somewhere between Sagittarius A* and the Solar System's barycenter. And for the humor impaired I agree that Munroe was referring to the barycenter.