[tor-talk] Data missed up in Tor Metrics, A bug?

[Anonymous Kyoto]

Dear Mod of Tor-metrics,
I just checked this link: https://metrics.torproject.org/stats/clients.csv
and found that the date column does not ordered the dates correctly. In
more details, after the date:09/03/2015, some other dates in the past
appear here 06/03/2011, 01/09/2011 and so on...
Is that normal, or because my Microsoft Excel has some problems?
Please check it out.
Best Regards.