Supercharging Speeds

Hi,
It would be great if you could add a feature where you could see your max / average supercharging speeds over time.

For example in my X75D when i first got it the Max charge speed was 90kW, then I hit approx. 13mWh and Tesla nerfed it to 87kW, then Tesla un-nerfed it and was getting 120kW. Now since 2012.12.25.6 I only get 80kW. Would be great to graph that out and compare previous SC speeds