9 weeks a year of vacation

From the Houston Chronicle:

On Thursday, Bush left for a weekend in Kennebunkport, Maine, and his family's summer compound, Walker's Point. On Monday, he heads to his Crawford retreat, where he has spent all or part of 418 days of his presidency, according to Mark Knoller, a CBS News White House correspondent and meticulous record-keeper.

...The presidential vacation-time record holder is the late Ronald Reagan, who tallied 436 days in his two terms. At 418 days, and with 17 months to go in his presidency, Bush is going to beat that easily.

As Pam Spaulding notes at Americablog, that's an average of 9 weeks a year.