**Exhibit 99.1**

**SELECTED QUARTERLY FINANCIALINFORMATION                        (Unaudited)**

Selected quarterly information for the years ended December 31, 2000and 1999 is as follows (in thousands, except per unit amounts):
|                                                         | Quarter Ended****    |
|--------------------------------------------------------------|----------------------|
| **2000******                                                 | **December  31****** | **September  30****** | **June  30****** | **March  31****** |
|                                                         |                 |   |   |   |
| Revenues from Rental Operations                              | $172,924             | $185,760 | $178,408 | $174,734 |
| Revenues from Service Operations                             | 21,790               | 21,903 | 25,041 | 14,065 |
| Net income available for common units                        | 84,385               | 51,949 | 52,402 | 56,293 |
| Basic income per common unit                                 | $0.58                | $0.36 | $0.36 | $0.39 |
| Diluted income per common unit                               | $0.57                | $0.35 | $0.36 | $0.39 |
| Weighted average common units                                | 146,633              | 146,138 | 145,719 | 145,125 |
| Weighted average common and dilutive potential  common units | 154,793              | 147,916 | 147,181 | 146,326 |
| Funds From Operations (1)                                    | $94,049              | $93,968 | $90,693 | $86,419 |
| Cash flow provided by (used by):                             |                 |   |   |   |
|    Operating activities                       | $147,994             | $126,831 | $97,171 | $77,394 |
|    Investing activities                       | 146,067              | 14,649 | (98,142) | (160,326) |
|    Financing activities                       | (295,980)            | (141,764) | 4,518 | 102,274 |
|                                                         |                 |   |   |   |
| **1999******                                                 |                 |   |   |   |
|                                                         |                 |   |   |   |
| Revenues from Rental Operations                              | $166,155             | $160,273 | $107,148 | $101,987 |
| Revenues from Service Operations                             | 17,469               | 15,402 | 8,893 | 12,267 |
| Net income available for common units                        | 47,811               | 48,005 | 32,702 | 30,929 |
| Basic income per common unit                                 | $0.33                | $0.35 | $0.33 | $0.32 |
| Diluted income per common unit                               | $0.32                | $0.35 | $0.33 | $0.32 |
| Weighted average common units                                | 119,467              | 137,721 | 97,894 | 97,198 |
| Weighted average common and dilutive potential  common units | 120,511              | 138,923 | 98,855 | 98,094 |
| Funds From Operations (1)                                    | $83,258              | $79,607 | $53,794 | $50,584 |
| Cash flow provided by (used by):                             |                 |   |   |   |
|    Operating activities                       | $57,527              | $176,189 | $50,502 | $32,068 |
|    Investing activities                       | (169,383)            | (248,488) | (155,907) | (167,069) |
|    Financing activities                       | 85,558               | (50,985) | 238,520 | 163,356 |