pic: OPR Investigation from 2013 to 2017

CD-Media: Photos
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b0f261ea8526183caeb5f6c9e616f684_l.jpg

To supplement the effectiveness of OPR across seasons.

Raw OPR data: http://s000.tinyupload.com/index.php?file_id=87709124604828388838

If anyone wants a different type of analysis, just ask.