https://metrics.torproject.org/rs.html#details/EC0ABA811E4EB33DAD8BC8B7037D862BF4F3AA28
I honestly have no idea. I am running on Google Fiber and have set:
RelayBandwidthRate 52000 KBytes
RelayBandwidthBurst 104000 KBytes
The spike in January is when I switched out some bad equipment. There were a couple of outages in late Feb/Mar for a few hours each, and then some (usually monthly) restarts since. I also at one point tried to add a Family Member which I have since removed. Other than that, there haven't been any changes to my setup. Aside from the addition, then removal of the family member, my torrc configuration hasn't changed since starting over a year ago.
Any thoughts? I'd like to be more useful to the community,