INFOGRAPHIC: Two city departments run similar programs focused on getting people off the streets and into housing. Audits of San Francisco’s homelessness programs say that the demand for permanent supportive housing far outstrips supply. More than 7,000 people are homeless today; only a few hundred spaces in housing become available each year. Part of a special report on homelessness and mental health in San Francisco, in the fall 2014 print edition. Stories rolling out online throughout the fall.