The margin of error on the month-over-month figures is around 10% so the 4.8% change for September is statistically insignificant (ie, its just noise in the dataset)
We also need to remember that the 23.3% year-over-year decline (which IS statistically significant) is ON TOP of the year-over-year decline from 2006 – ie, this is the second year in a row of serious decline (something that the MSM certainly isn’t going to point out)
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We can all take heart though, Lawrence Yun of the NAR is assuring us that these problems are temporary!