Here's the screenshot of the pivot table with monthly averages from my daily stats file I've logged for more than a year of use. My i3 is 09/2015 60Ah BEV, 30.5K miles now, I bought it at 15.7K miles in the US and brought it to Ukraine in the end of May 2018. The A column contains months - May-Dec 2018 and Jan-June 2019. Somehow I can't display these in En in the pivot. Other column names should be self-explanatory, but let me know if it's not the case.