<prompt> Human: A handy guide: Since my account is older than 2006, and I kept getting processing failures when I tried to fetch from 2006 onward, I had to set the start date as 112007The summation can be easily calculated once the data output is imported into a spreadsheet program like Excel or its free equivalent alternative.I thought this would be pretty helpful for us heavy Amazon shoppers to be periodically aware of and track on a year to year basis.  <response>: scared to look... 