Table B-2. Standard Errors of Estimated Percentages for Characteristics of Vacant Rental and Homeo Housing Units: 2002 Estimated percentage 1 or 2 or 5 or 10 or 15 or 20 or 25 or 99 98 95 90 85 80 75 50 Vacant rental units........ 0.1 0.2 0.2 0.3 0.4 0.4 0.5 0.6 Vacant homeowner units..... 0.2 0.2 0.4 0.5 0.6 0.7 0.7 0.8