George Kadianakis authored Dec 02, 2014 and Nick Mathewson committed Dec 19, 2014

The two statistics are:
 1. number of RELAY cells observed on successfully established
    rendezvous circuits; and
 2. number of .onion addresses observed as hidden-service
    directory.

Both statistics are accumulated over 24 hours, obfuscated by rounding
up to the next multiple of a given number and adding random noise,
and written to local file stats/hidserv-stats.

Notably, no statistics will be gathered on clients or services, but
only on relays.