I am trying to find a way to get all the traffic for the past month, on each wan port, just to see what the total traffic was on each WAN port, to keep my ISP honest.  This is especially useful for people that have ISP's that have datacaps.  This seems like a very simple feature to impliment, I am just surprised that it is not on the Statistics page or the Repots page.  The way I have to do it now is use the graph on the statistics or the reports page, and go to each day of the mont, and make a running sum in a calculator.  I know I can probably make a script, but this feature should just exist in my opinion.