I've no idea, but have always imagined Phred as:
5% #1
15% #2
50% #3
20% #4
10% #5
0% #6/Sumo

But more twinkly eyed ... than this mix shows ...
For what it's worth. (Since we usually see him through Cinder and Smokey's eyes, shouldn't there be someone lugging in a big sack of doggie biscuits???)