a) Construction Revenues, included within Total Revenues, and Construction Expenses include revenues and expenses associated with the Company acting in the capacity of general contractor for certain third party development projects. Additionally, for the three months ended March 31, 2008, construction revenues and expenses include amounts relating to the sale of industrial units that the Company developed to sell and for the three months ended March 31, 2007, construction revenues and expenses include amounts relating to the construction of a building for a third party, accounted for on a percentage of completion basis.

b) Represents the Company’s share of net income, depreciation and amortization on real estate and accumulated depreciation and amortization on real estate sold from the Company’s joint ventures in which it owns minority equity interests.

c) In August 2001, the Financial Accounting Standards Board issued Statement of Financial Accounting Standard No. 144 “Accounting for the Impairment or Disposal of Long-Lived Assets” (“FAS 144”). FAS 144 requires that the operations and gain (loss) on sale of qualifying properties sold and properties that are classified as held for sale be presented in discontinued operations. FAS 144 also requires that prior periods be restated.

d) Investors in and analysts following the real estate industry utilize FFO, NOI, EBITDA and FAD, variously defined, as supplemental performance measures. While the Company believes net income available to common stockholders, as defined by GAAP, is the most appropriate measure, it considers FFO, NOI, EBITDA and FAD, given their wide use by and relevance to investors and analysts, appropriate supplemental performance measures. FFO, reflecting the assumption that real estate asset values rise or fall with market conditions, principally adjusts for the effects of GAAP depreciation and amortization of real estate assets. NOI provides a measure of rental operations, and does not factor in depreciation and amortization and non-property specific expenses such as general and administrative expenses. EBITDA provides a tool to further evaluate the ability to incur and service debt and to fund dividends and other cash needs. FAD provides a tool to further evaluate the ability to fund dividends. In addition, FFO, NOI, EBITDA and FAD are commonly used in various ratios, pricing multiples/yields and returns and valuation calculations used to measure financial position, performance and value.

     The Company calculates FFO to be equal to net income available to common stockholders, plus depreciation and amortization on real estate, minus accumulated depreciation and amortization on real estate sold. Accordingly, as calculated by the Company, FFO includes net economic gains resulting from all Company property sales as well as assignment fees. Assignment fees are earned when the Company assigns its interest in a purchase contract to a third party for consideration.

     NOI is defined as revenues of the Company, minus property expenses such as real estate taxes, repairs and maintenance, property management, utilities, insurance and other expenses. NOI includes NOI from discontinued operations.

     EBITDA is defined as NOI, plus the equity in FFO of the Company’s joint ventures, which are accounted for under the equity method of accounting, plus Net Economic Gains, minus general and administrative expenses. EBITDA includes EBITDA from discontinued operations.

     FAD is defined as EBITDA, minus GAAP interest expense, minus preferred stock dividends, minus straight-line rental income, minus provision for income taxes or plus benefit for income taxes, plus restricted stock amortization, minus non-incremental capital expenditures. Non-incremental capital expenditures are building improvements and leasing costs required to maintain current revenues.

     FFO, NOI, EBITDA and FAD do not represent cash generated from operating activities in accordance with GAAP and are not necessarily indicative of cash available to fund cash needs, including the repayment of principal on debt and payment of dividends and distributions. FFO, NOI, EBITDA and FAD should not be considered as substitutes for net income available to common stockholders (calculated in accordance with GAAP), as a measure of results of operations, or cash flows (calculated in accordance with GAAP) as a measure of liquidity. FFO, NOI, EBITDA and FAD, as calculated by the Company, may not be comparable to similarly titled, but variously calculated, measures of other REITs or to the definition of FFO published by NAREIT.

     The Company also reports Net Economic Gains, which, effectively, measure the value created in the Company’s capital recycling activities. Net Economic Gains are calculated by subtracting from gain on sale of real estate (calculated in accordance with GAAP, including gains on sale of real estate classified as discontinued operations) the recapture of accumulated depreciation and amortization on real estate sold (excluding the recapture of accumulated amortization related to above/below market leases and lease inducements as this amortization is included in revenues and FFO) and the provision for income taxes (excluding taxes associated with joint ventures). Net Economic Gains also includes assignment fees.

     In addition, the Company considers cash-basis same store NOI (“SS NOI”) to be a useful supplemental measure of its operating performance. Beginning with the fourth quarter of 2006, the Company adopted the following definition of its same store pool of properties: Same store properties, for the period beginning January 1, 2008, include all properties owned prior to January 1, 2007 and held as an operating property through the end of the current reporting period and developments and redevelopments that were placed in service or were substantially completed for 12 months prior to January 1, 2007 (the “Same Store Pool”). The Company defines SS NOI as NOI, less NOI of properties not in the Same Store Pool, less the impact of straight-line rent and the amortization of above/below market rent. For the quarters ended March 31, 2008 and 2007, NOI was $64,812 and $69,514, respectively; NOI of properties not in the Same Store Pool was $9,868 and $16,167, respectively; the impact of straight-line rent and the amortization of above/below market rent was $1,839 and $2,344, respectively. The Company excludes straight-line rents and above/below market rent amortization in calculating SS NOI because the Company believes it provides a better measure of actual cash basis rental growth for a year-over-year comparison. In addition, the Company believes that SS NOI helps the investing public compare the operating performance of a company’s real estate as compared to other companies. While SS NOI is a relevant and widely used measure of operating performance of real estate investment trusts, it does not represent cash flow from operations or net income as defined by GAAP and should not be considered as an alternative to those measures in evaluating our liquidity or operating performance. SS NOI also does not reflect general and administrative expenses, interest expenses, depreciation and amortization costs, capital expenditures and leasing costs, or trends in development and construction activities that could materially impact our results from operations. Further, the Company’s computation of SS NOI may not be comparable to that of other real estate companies, as they may use different methodologies for calculating SS NOI.

e) Pursuant to Statement of Financial Accounting Standard No. 128, “Earnings Per Share”, the diluted weighted average number of shares/units outstanding and the diluted weighted average number of shares outstanding are the same as the basic weighted average number of shares/units outstanding and the basic weighted average number of shares outstanding, respectively, for periods in which continuing operations is a loss, as the dilutive effect of stock options and restricted stock would be antidilutive to the loss from continuing operations per share.