1year mpg avg?
 

Is there any way to add a 1year mpg average to the databases below the MPG graph? I like the lifetime and 90day averages but I'm wondering if it would be helpful to have a 365-day average? If this is a dumb idea please say so...

In addition to the trace on the graph with the lifetime average, how about a 90day trace?
If it makes it too busy or cluttered, maybe only have it kick in after a large enough number of fills.

I went with the "call it another car every year" plan.