Table B-1. Standard Errors of Vacancy Rates by Area: 1998 (Range of 68 chances out of 100) Rental Rate Standard Year-to- Standard for error on year diff- error on year rate erence difference1 United States.............. 7.9 0.1 0.2 0.1 Inside Metropolitan Areas 7.7 0.1 0.2 0.2 In central cities...... 8.2 0.2 0.1 0.2 Not in central cities.. 7.1 0.2 0.2 0.2 Outside Metropolitan Area 9.2 0.3 0.4 0.4 Northeast................ 6.7 0.2 -0.1 0.3 Midwest.................. 7.9 0.2 -0.1 0.3 South.................... 9.6 0.2 0.5 0.3 West..................... 6.7 0.2 0.1 0.3 For-rent as a percent of all housing units United States.............. 2.6 (z) - 0.1 Inside Metropolitan Areas 2.7 (z) - 0.1 Outside Metropolitan Area 2.1 (z) - 0.1 Northeast................ 2.4 0.1 - 0.1 Midwest.................. 2.3 0.1 -0.1 0.1 South.................... 2.9 0.1 0.1 0.1 West..................... 2.6 0.1 - 0.1 Homeowner Rate Standard Year-to- Standard for error on year diff- error on year rate erence difference1 United States.............. 1.7 (z) 0.1 (z) Inside Metropolitan Areas 1.6 (z) 0.1 0.1 In central cities...... 2.0 0.1 0.1 0.1 Not in central cities.. 1.5 (z) 0.1 0.1 Outside Metropolitan Area 2.0 0.1 0.1 0.1 Northeast................ 1.5 0.1 -0.1 0.1 Midwest.................. 1.4 0.1 0.2 0.1 South.................... 2.0 0.1 0.1 0.1 West..................... 1.7 0.1 -0.1 0.1 For-sale-only as a percent of all housing units United States.............. 1.0 (z) - (z) Inside Metropolitan Areas 1.0 (z) - (z) Outside Metropolitan Area 1.2 (z) 0.1 0.1 Northeast................ 0.9 (z) - 0.1 Midwest.................. 0.9 (z) 0.1 0.1 South.................... 1.2 (z) 0.1 0.1 West..................... 0.9 (z) - 0.1 Z less than 0.05 percent. 1Difference between 1998 rates and 1997 rates.