Table 7. Homeownership Rates by Age of Householder: Fourth Quarter: 2005 and 2006 (in percent) 90-percent Fourth Fourth confidence 90-percent confidence Age of householder Quarter Quarter interval interval (±)a 2005 2006 of 2006 rate of difference United States..... 69.0 68.9 0.5 0.4 Under 25 years 24.8 25.7 1.5 1.4 25 to 29 years 41.6 41.8 1.5 1.4 30 to 34 years 57.1 55.8 1.4 1.3 35 to 39 years 67.4 66.5 1.3 1.2 40 to 44 years 71.8 71.1 1.2 1.1 45 to 49 years 75.1 75.3 1.1 1.2 50 to 54 years 78.5 77.6 1.1 1.2 55 to 59 years 80.0 79.9 0.8 0.9 60 to 64 years 81.6 81.6 0.9 0.9 65 to 69 years 82.8 82.7 1.4 1.2 70 to 74 years 82.7 83.6 1.5 1.3 75 years and over 78.5 79.3 1.1 1.0 Under 35 years 43.1 42.8 0.9 0.8 35 to 44 years 69.7 68.9 0.9 0.8 45 to 54 years 76.7 76.4 0.8 0.8 55 to 64 years 80.6 80.7 0.6 0.6 65 years and over 80.6 81.2 0.8 0.7 aA 90-percent confidence interval is a measure of an estimate's reliablilty. The larger the confidence interval is, in relation to the size of the estimate, the less reliable the estimate.