Graph- Year to Date sum

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May 10, 2010
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I would like to produce a graph which has a year to date usage and a trendline of what we should not exceed.

We document at the moment a daily reading

[Date] [Well1] [Well 2]

In a query i have got the daily usage of both wells but i cannot figure out how to sum it

I am only new at this so any help would be great
 
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