[tor-relays] Unbalanced send/recieve

Hi all,

sorry for my probable newbie question.

My bridge's log file reads:

Jul 10 11:21:34.000 [notice] Heartbeat: Tor's uptime is 17:52 hours, with 4 circuits open. I've sent 12.55 MB and received 209.33 MB.

Is it normal to have such an unbalanced ratio or do I have to worry about something? In the past, I always used to recieve a quart more than I sent which I couldn't quite explain, but now...

Thanks for an answer.

Sincerly

christian