Prospectus excerpt:  We are offering16,000,000 shares of our 4.750% Series C Cumulative Redeemable Preferred Stock, par value $0.01 per share, which we refer to in this prospectus supplement as the series C preferred stock. We will pay cumulative dividends on the series C preferred stock from the date of first issue of any shares of series C preferred stock at a rate of 4.750% per annum of the $25.00 liquidation preference per share (equivalent to an annual rate of $1.1875 per share). Dividends on the series C preferred stock will be payable quarterly in arrears on or about the last day of March, June, September and December of each year, beginning on or about March 31, 2022. The series C preferred stock will rank senior to our common stock with respect to dividend rights and rights upon our liquidation, dissolution or winding up.