jwnmm said:
Congratulations!
And calculating such an average sounds like too much math (albeit easy math, but I am lazy).
If you look at the spreadsheets, you can select a variety of cells, such as by dragging to select a single column through a range of rows, or through all rows. Once you do that, in the bottom right hand, Google Sheets has a feature which at first will show the sum of all those cells. If you click on it, you can select to view the average instead, and it also shows minimum, maximum, etc.