all hash rate for now is about 30 MH/sec - 20.5 nanopool, 2 fairhash, 1 spacepools, 1 hashvault and lees others...
but difficulty is 19000137766 - its equals 158.33 MH/sec
why?
because of difficulty adjust 80 blocks and some cheater uses this.
he is mining with approximately 140 MH/sec (some hidden/private pool or solo) about 2-3 hours on low difficulty 80-100 blocks,
then difficulty adjust and he stops...
after that nanopool (20.5 MH/sec) is finding blocks with high diff not 2 min/block, but 15-20 min... for others its hours..

may be difficulty adjust must be less then 80 blocks? 5 - 10 for example?