The provided figures therefore underestimate total national public support for the sector. National level data on support for social rental housing provided by the central government is missing for Canada, Estonia, Germany, Japan, Luxembourg, and the United Kingdom. In addition to public subsidies in the forms just discussed, the sources of financing for social rental providers include rental income, debt finance and equity contributions. Rental income consists of the rents paid by social tenants which are, as discussed, often subsidized by housing allowances. Various rules are used in OECD countries to set rent levels in social rental housing. Rents are based on tenants’ income in Australia, Ireland, Japan, Luxemburg and New Zealand, they are set based on dwelling costs in Austria, Denmark, Finland and Switzerland, and, they are set based on the dwelling characteristics such as size and location in the Netherlands and Estonia (OECD QuASH).