Prospectus excerpt:  We are offering 300,000 shares of our 7.625% Series C Cumulative Redeemable Preferred Stock, par value $0.01 per share (which we refer to as the ôSeries C Preferred Stockö). We will pay cumulative dividends on the Series C Preferred Stock, from and including the date of original issuance, in the amount of $1.90625 per share each year, which is equivalent to 7.625% of the $25.00 liquidation preference per share. Dividends on the Series C Preferred Stock will be payable quarterly in arrears, beginning on April 15, 2015. Our other series of preferred stock outstanding as of the date of this prospectus supplement are 1,009,640 shares of our 6.25% Series B Cumulative Preferred Stock (which we refer to as our ôSeries B Preferred Stockö), with a liquidation preference of $25.00 per share, and 1,919,378 shares of our 8.625% Series A Cumulative Preferred Stock (which we refer to as our ôSeries A Preferred Stockö), with a liquidation preference of $25.00 per share. The Series C Preferred Stock will rank on parity with our Series A Preferred Stock and Series B Preferred Stock.