How much data traffic does participating in P2Pool mining cause? In an earlier question we learned some rough numbers about how much data does regular pool mining use. However, I wonder how much data is typically used when one is mining in a P2Pool?
According to Greg Maxwell:

4.14kB/sec in, 10.7kb/s out; averaged over the last 30 days. 38GB in transfer total.
Significantly less than the full node that goes with it... p2pool used to be fairly large relative to the node; but greater amounts of load on the Bitcoin network have shifted the balance.