Middlecoin list doesn't have 3GH Big Whale, the first 10 positions are simply Fat Cats ))
Accepted MH/s (Last Hour)
19949.3215
==========
314.5169
151.7592
96.5436
94.4744
86.4772
72.9809
....
To say more, Multipool doge hashrate decreased from 21GH to 13Gh, assumed that 9GH of rigs switched somewhere...

Dogehouse and Fast-Pool lost about a half of their peak hashrate also.