$3.079/$45 = .06842 or 6.84% (based on prior year)
Keep in mind the dividend is paid out of earnings from real estate operations. There is strong reason to believe that our recent past is not representative of the world we live in today (or the near future). This is not a bond fund, you are not buying a yield, you are buying real estate (most of it highly-leveraged) with the hopes that it can continue to be rented at a profit.
That being said, if you like the idea of REIT's, this is probably the best choice.... And it appears to be a better time than buying this time last year.