Table 10. Percent Distribution by Type of Unit for the United States and for Inside and Outside Metropolitan Statistical Areas: Fourth Quarter 2006 and 2007 (Percent distribution may not add to total, due to rounding) Fourth Quarter 2006 Type of housing unit United Inside Metropolitan Outside Metropolitan States Statistical Areas Statistical Areas All housing units......................... 100 100 100 Year-round vacant..................... 10.0 9.6 11.7 For rent............................ 3.0 3.2 2.1 For sale only....................... 1.7 1.7 1.4 Rented or sold, awaiting occupancy.. 0.8 0.8 0.7 Held off market..................... 4.6 3.9 7.5 For occasional use................ 1.5 1.1 3.1 Temporarily occupied by persons with usual residence elsewhere.... 0.9 0.9 0.9 For other reasons................. 2.2 1.9 3.5 Seasonal vacant....................... 3.2 2.0 8.8 Occupied.............................. 86.8 88.4 79.5 Fourth Quarter 2007 Type of housing unit United Inside Metropolitan Outside Metropolitan States Statistical Areas Statistical Areas All housing units......................... 100 100 100 Year-round vacant..................... 10.4 10.0 11.9 For rent............................ 3.0 3.2 2.1 For sale only....................... 1.7 1.7 1.6 Rented or sold, awaiting occupancy.. 0.8 0.8 0.7 Held off market..................... 4.9 4.3 7.6 For occasional use................ 1.6 1.2 3.0 Temporarily occupied by persons with usual residence elsewhere.... 0.9 0.9 0.7 For other reasons................. 2.5 2.2 3.9 Seasonal vacant....................... 3.5 2.1 9.6 Occupied.............................. 86.2 87.9 78.5 NA Not available. Metropolitan Statistical Area data for 2005 and later are not comparable to earlier data. Beginning in first quarter 2005, the Current Population Survey/Housing Vacancy Survey is using the new metropolitan and micropolitan statisitcal definitions which were announced by the Office of Management and Budget (OMB) in June 2003, and were based on the application of the 2000 standards to Census 2000 data. OMB announced updates as of December 2003, based on application of the 2000 standards to more recent Census Bureau estimates. In this report, outside Metropolitan Statistical Areas includes micropolitan and non-metropolitan statistical areas. The December 2003 definitions are available at <a href="https://www.census.gov/population/www/estimates/metrodef.html">https://www.census.gov/population/www/estimates/metrodef.html</a> and <a href="https://www.census.gov/population/www/estimates/aboutmetro.html">https://www.census.gov/population/www/estimates/aboutmetro.html</a>.