I track monthly historical information and report it via the web every month in Excel Charts. I am looking for the easiest way to have my charts updated each month.
Say I have 200+ monthly records going back to 1/1/1991. How do I create a dynamic chart that shows each YEAR, YTD in comparison (i.e. this month would feature 1991, 1992, ... 2009 YTD through February, whereas next month would feature 1991, 1992, ... 2009 YTD through March).
Thanks.
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