They historically under report their numbers.  They admitted to killing 30,000 to the council, and the real number falls somewhere between 30,000 and 60,000.  They had to expand their facility and build a new one in Kapolei to keep with and expand their killing numbers.  They kill somewhere in the 90% plus range for cats and around the high 70% range for dogs.  And the deaths are ugly and not humane by any stretch of the imagination.