Chart 1 Negative Net Absorption of Office Space Continues to Drive Vacancy Rates Upward

Date Completions Vacancy Rate (%) Net Absorption
12/31/90 82 0.1872 52.70
12/31/91 53 0.1904 34.90
12/31/92 32 0.1868 37.30
12/31/93 7 0.1691 54.10
12/31/94 6 0.1530 48.50
12/31/95 8 0.1392 43.10
12/31/96 16 0.1220 61.60
12/31/97 28 0.0993 86.90
12/31/98 56 0.0897 77.00
12/31/99 101 0.0961 72.50
12/31/00 83 0.0865 103.10
12/31/01 83 0.1420 -96.50
12/31/02 61 0.1650 -14.70
3/31/03 9 0.1690 -7.10

Source: Torto Wheaton Research. 2003 results as shown are as of first quarter