Survey of Market Absorption of New Multifamily Units:2015

"This report presents data on how soon privately financed, nonsubsidized, unfurnished units in buildings with five or more units were rented (absorbed) after completion in 2014. 1 It is based on information collected in the Survey of Market Absorption of Multifamily Units (SOMA), which has been measuring market absorption for over forty years. Also included in this annual report are supplemental tables issued once every five years. Additional reports produced during the year include the Annual Characteristics report and four quarterly absorption reports..."
Housing

Rental Housing Market Condition Measures: 2009(American Community Survey Brief)
"This report presents data from the 2009 American Community Survey (ACS) on rental market conditions, including share of occupied housing, housing costs, housing cost “burden,” and vacancy rate at the national level and for metropolitan statistical areas (metro areas).

Rental housing is catapulting to the top of the national housing agenda, The past 30 years have witnessed a housing policy that has been focused on promoting homeownership. The large gap between the number of renting households and the units that they can afford will only grow as foreclosures
persist and home mortgages become increasingly scarce for all but the most qualifi ed buyers. Consequently, rental housing is getting a second look as an important component of a national housing policy..."