The holiday issue of GP turned up this week, and since boys will be boys, I turned immediately to the USPS Statement of Ownership, Management, and Circulation on page 103.
The numbers listed there are a tad strange. It turns out our gracious hosts print about 177 thousand copies each month, of which 86 thousand are sent to subscribers, 26 thousand are sold through retail outlets, and a few thousand are given away. That leaves a good 60 thousand copies (!) that go nowhere and are, one presumes, available free to a good home, like untimely puppies.