Is it normal that people on Skein are mining a lot of dgb and finding block 50 times more than scrypt

Look how many blocks are found... don't understand why there is so much difference between scrypt and skein... this should be adjusted with difficulty normaly between all algos right ? (Skein:
http://birdspool.no-ip.org:5031/static/stats/ Scrypt:
http://p2phash.com:9022/static/)