Exhibit 99.1

SELECTED QUARTERLY FINANCIAL INFORMATION

(Unaudited)

Selected quarterly information for the years ended December 31, 2008 and 2007 is as follows (in thousands, except per unit amounts):



|                                                                |  |               |         |     |              |   |         |  |          |         |  |   |        
|--------------------------------------------------------------- |  | ------------- | ------- | --- | ------------ | - | ------- |  | -------- | ------- |  | - | -------
|                                                                |  | Quarter Ended
|2008                                                            |  | December 31   |         |     | September 30 |   | June 30 |  | March 31
|                                                                |  |               |         |    
|Revenues from continuing Rental Operations                      |  | $             | 229,611 |     |              | $ | 218,680 |  | $        | 221,322 |  | $ | 224,576
|Revenues from continuing Service Operations                     |  |               | 34,920  |     |              |   | 29,066  |  |          | 23,136  |  |   | 14,776 
|Net income available for common unitholders                     |  | $             | 22,976  | (2) |              | $ | 13,933  |  | $        | 18,983  |  | $ | 4,309  
|Basic income per Common Unit                                    |  | $             | 0.15    |     |              | $ | 0.09    |  | $        | 0.12    |  | $ | 0.03   
|Diluted income per Common Unit                                  |  | $             | 0.15    |     |              | $ | 0.09    |  | $        | 0.12    |  | $ | 0.03   
|Weighted average Common Units                                   |  |               | 154,914 |     |              |   | 154,604 |  |          | 154,425 |  |   | 154,189
|Weighted average Common Units and potential dilutive securities |  |               | 155,347 |     |              |   | 155,344 |  |          | 155,064 |  |   | 154,596
|Funds From Operations (1)                                       |  | $             | 111,351 |     |              | $ | 102,152 |  | $        | 92,710  |  | $ | 89,188 
|                                                                |  |               |         |    
|2007                                                            |  | December 31   |         |     | September 30 |   | June 30 |  | March 31
|                                                                |  |               |         |    
|Revenues from continuing Rental Operations                      |  | $             | 226,529 |     |              | $ | 212,592 |  | $        | 202,657 |  | $ | 210,311
|Revenues from continuing Service Operations                     |  |               | 42,316  |     |              |   | 20,273  |  |          | 22,039  |  |   | 14,730 
|Net income available for common unitholders                     |  | $             | 61,990  |     |              | $ | 57,061  |  | $        | 39,725  |  | $ | 73,473 
|Basic income per Common Unit                                    |  | $             | 0.40    |     |              | $ | 0.39    |  | $        | 0.27    |  | $ | 0.50   
|Diluted income per Common Unit                                  |  | $             | 0.40    |     |              | $ | 0.39    |  | $        | 0.27    |  | $ | 0.49   
|Weighted average Common Units                                   |  |               | 153,769 |     |              |   | 146,752 |  |          | 146,703 |  |   | 146,552
|Weighted average Common Units and potential dilutive securities |  |               | 154,467 |     |              |   | 147,651 |  |          | 148,129 |  |   | 149,465
|Funds From Operations (1)                                       |  | $             | 123,493 |     |              | $ | 99,943  |  | $        | 93,479  |  | $ | 92,500 



| | (1) | Funds From Operations (FFO) is used by industry analysts and investors as a supplemental operating performance measure of an equity real estate investment trust
(REIT) like our General Partner. FFO is calculated in accordance with the definition that was adopted by the Board of Governors of the National Association of Real Estate Investment Trusts (NAREIT). NAREIT created FFO as a
supplemental measure of REIT operating performance that excludes historical cost depreciation, among other items, from net income determined in accordance with United States generally accepted accounting principles (GAAP). FFO is a
non-GAAP financial measure. The most comparable GAAP measure is net income (loss). FFO should not be considered as a substitute for net income or any other measures derived in accordance with GAAP and may not be comparable to other similarly titled
measures of other companies.
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Historical cost accounting for real estate assets in accordance with GAAP implicitly assumes
that the value of real estate assets diminishes predictably over time. Since real estate values instead have historically risen or fallen with market conditions, many industry analysts and investors have considered presentation of operating results
for real estate companies that use historical cost accounting to be insufficient by themselves. FFO, as defined by NAREIT, represents GAAP net income (loss), excluding extraordinary items as defined under GAAP and gains or losses from sales of
previously depreciated real estate assets, plus certain non-cash items such as real estate asset depreciation and amortization, and after similar adjustments for unconsolidated partnerships and joint ventures.

Management believes that the use of FFO, combined with the required primary GAAP presentations, improves the understanding of operating results of REITs
among the investing public and makes comparisons of REIT operating results more meaningful. Management believes FFO is a useful measure for reviewing comparative operating and financial performance (although FFO should be reviewed in conjunction
with net income which remains the primary measure of performance) because by excluding gains or losses related to sales of previously depreciated real estate assets and excluding real estate asset depreciation and amortization, FFO provides a useful
comparison of the operating performance of our real estate between periods or as compared to different companies.



| | (2) | Amount includes a $14.0 million gain on the repurchase of Preferred Units and $11.4 million of non-cash impairment charges on undeveloped land and buildings.
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