Tracking stats

example output:

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Live tracking statistics for user: Tobias Bieniek (ID: 31)

Number of sessions: 42
Number of received fixes: 42302

Sessions:
02.07.2012 - 20:13-20:13 - 0:00:10 - Q 49.23% - 3 fixes (dt: 2.5, avg 5.0)
15.07.2012 - 13:58-13:58 - 0:00:00 - Q 100.00% - 1 fixes (dt: 0.0, avg 0.0)
16.07.2012 - 14:37-14:41 - 0:03:29 - Q 45.85% - 43 fixes (dt: 2.3, avg 5.0)
21.07.2012 - 07:50-10:26 - 2:35:50 - Q 31.26% - 896 fixes (dt: 3.3, avg 10.4)
22.07.2012 - 09:48-12:01 - 2:12:45 - Q 0.04% - 1096 fixes (dt: 0.0, avg 7.3)
~~~~