Usage graph reset and timeframes

[Elevenses]

Is there a way to reset the usage graph?

 

My usage graph has been going for 2 years, there are months of time in there when I wasn't using the computer, and I'd be interested in a more current average

possibly with the new year

 

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The Alfred usage graph is actually a really nice rough indicator for when and how much I'm using my computer, and I know there are other ways of measuring time management, but I like this graph, and I'm guessing the data is there, it'd be neat to see specific months with a more accurate X-axis (ex. Thursday November 30th), or a graph including time of day could be neat.

 

That last one is a long shot I know, but the graph reset seems reasonable, I tried digging for the graph file and couldn't find it.