vacancy rate

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8/15/2010
BLS is showing a major increase in vacancy rate for Raleigh, jumping from 6.2 to 15.2 from Q1 2010 to Q2 2010, which took me by complete surprise.
You're showing much lower vacancy rate for Raleigh, more in line with Q1 # from BLS. I see that most of your data were updated from June 2010. Can you share how you get your vacancy data?
Thank you very much!
lchang | Summit, NJ