Almost 24,000: hours that San Francisco police officers spent on “hospital watch” guarding suspects at Zuckerberg San Francisco General Hospital so they can get medical treatment before being transferred to jail . . . $1.7 million: cost of police providing that hospital watch . . . 3: the number of California mayors — including Mayor London Breed — who attended Mike Bloomberg’s mayoral training program at Harvard who have now endorsed Bloomberg for president . . . 1,000 and 2,000: Breed said the city achieved its goal of getting 1,000 new shelter beds opened or in the process of development or construction by the end of 2020, and she announced a new goal to create at least 2,000 more spaces over the next two years.