But if we are getting fussy then we can't assume that the keys in the hash are less than eight letters long (or that tabs are 8 chars). With this assumption we'll lose alignment for large keys:

small:   ----- 5
really big key: -------- 8
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I see that you reduce the keys to 8 chars, but this may not work for keys such as "TotalSales2003", "TotalSales2004" etc. This is why I hate 'pertyness', there is always something to break it...