SUBSID2015_004_spending_per_monthAverage federal spending per unit-month. For public housing, the sum of the monthly operating subsidy and capital improvement cost is divided by the total number of occupied units. For tenant-based Section 8, Section 8 Moderate Rehabilitation, and Multifamily Assisted, the monthly housing assistance payment (HAP) is divided by the total number of occupied units. An amount is added for administrative cost in Section 8 tenant based and Section 8 Moderate Rehabilitation