George W. Vacation Time

Does the President spend more time on vacation than anyone else in the world? He is on vacation right now, he spent the past few weeks watching the Olympics, which is just about the same as a vacation, he spent much of his first few months as president on vacation. Shouldn't he be doing something productive in his last few months in office, try to make his name a little more respected around the world and possibly leave a positive impact on the country he lead for almost a decade. Even though almost any positive's would surely be overshadowed by the atrocities he has committed. Do we have a set amount of time Presidents are allowed to vacation, because if not we should definitely implement one.