On December 30th, 2008, The Attempts Stopped

The last entries were:

Dec 30 11:03:08 rosalita sshd[51108]: error: PAM: authentication error for illegal user sophia from 201.161.28.9
Dec 30 11:05:08 filehut sshd[54932]: error: PAM: authentication error for illegal user sophia from 201.161.28.9
Dec 30 11:06:35 rosalita sshd[51116]: error: PAM: authentication error for illegal user sophia from static-98-119-110-139.lsanca.dsl-w.verizon.net
Dec 30 11:09:03 filehut sshd[54981]: error: PAM: authentication error for illegal user sophia from static-98-119-110-139.lsanca.dsl-w.verizon.net

That is, not even completing a full alphabetic cycle.

By then they had made 29916 attempts (all failed, full listing here).

Trying 6100 user IDs (list by frequency here). Guess the top one?

From a total of 1193 different hosts (list by frequency here).

As I said earlier no successful penetrations. Zero.