Markets Comparison

                                     Parkway Vacancy Rates
VS. Our Markets VS. National Averages
As of April 1, 2008
               
    Market Vacancy PKY Vacancy 
  Market Suburban CBD Overall Suburban CBD Overall
  Houston 12.6% 8.9% 11.7% 3.3% N/A 3.3%
  Atlanta  18.7% 20.5% 19.3% 8.7% N/A 8.7%
  Chicago 15.6% 11.5% 13.4% 9.5% 7.8% 9.3%
  Phoenix  15.6% 12.4% 14.9% 11.6% N/A 11.6%
  Columbia  15.9% 13.6% 14.7% 19.9% 8.3% 9.7%
  Memphis  12.9% 18.8% 14.2% 3.0% 12.6% 8.3%
  Jackson  17.0% 9.3% 14.0% 16.1% 9.0% 11.8%
  Charlotte  12.8% 2.0% 9.7% 3.6% N/A 3.6%
  Richmond 7.7% 10.3% 8.4% 34.2% N/A 34.2%
  Orlando  11.3% 11.3% 11.3% 4.9% 11.7% 8.5%
  Nashville 10.0% 12.4% 10.5% N/A 14.0% 14.0%
  Hampton Roads  7.8% 7.4% 7.7% 12.4% 3.3% 9.3%
  St. Petersburg 14.5% 15.7% 14.7% N/A 0.0% 0.0%
  Jacksonville  12.1% 16.2% 13.3% 1.0% 18.5% 12.0%
  Ft. Lauderdale  12.0% 14.9% 12.6% 39.5% N/A 39.5%
  Totals  13.6% 12.0% 13.1% 12.5% 9.4% 9.7%
               
  National Average 14.9% 10.2% 13.2%  (averages from CBRE 1Q 2008)
               
  Market information as of 1st Quarter 2008 for all markets      
               
  Sources:  CB Richard Ellis, CoStar, Colliers Keenan, Advantis, REIS, Karnes