A recession is fascinating, in a morbid sort of way, for an economist. But I must admit that I am really getting tired of this one, and would like to get back to considering other problems.Real Gross Domestic Product grew at an average 3.6 percent annual rate in the decade before 2000, and 2.4 percent annually in the seven years after, well ahead of the 1 percent average annual rate of population growth. It began falling in the first quarter of 2008, and by the second quarter of 2009 it was down 5.1percent. Technically, the recession has been over for …