Ever changing averages, depending on date.
"Bernard Liengme" wrote in message
...
How about a mini example data set?
Bernard
28Jan2010---21---21
29Jan2010---37---29
30Jan2010---23---27
31Jan2010---39---30 (today)
01Feb2010----0---30
02Feb2010----0---30
02Feb2010----0---30
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