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So we can expect new numbers by this Monday then. Hopefully, they'll do it this Friday. eta: I just went to the official NPD website and they say this: CLIENT ALERT: January 2007 will be a five-week rather than four-week reporting period. The Retail Calendar utilized by The NPD Group for North America measures out 12 reporting periods of four or five weeks, spanning 364 days per year -- one day short of the calendar year of 365 days.