Of course, it's obvious 
It occurs to me that the scale on the graphs is wrong because that's what I'm asking for. I'm recording
bytes per five minute interval which of course is going to be different than
bits per second are going to be.
The math to fix this is (bytes per five minute interval) * (8 bits per byte) / (300 seconds per five minute interval) = (bits per second).
I also think it's time to:
- keep track of which data files have been imported into postgres because the import run time is already long, and will only grow longer
- break the total bytes value into inbound and outbound counts