Pivot table data incorrect

A

Alex

I have created a very simple pivot table from an Excel 2000 list. There are
no blank rows and I haven't changed any of the default settings. I am only
trying to sum a value. Does anyone know why some of my rows of data wouldn't
be calculating correctly? The Row headings show but either have a zero value
or only sum some of the data. Thanks for your help.
 
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