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N.b. I am having problems with using www.charte.ca as one increases the number of Excel lines of data beyond around 2500. It often times-out after several minutes and asks if I wish to continue to wait, this may happen several times and there appears to be no guarantee it will finally provide a result, instead basically locking up and requiring relogging into www.charte.ca. This is the reason teh the data is divided up by Jan-Apr and May-Jun.
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