sentences:  The average household size was 2.67 and the average family size was 3.17.In the city, the population was spread out with 29.4% under the age of 18, 10.3% from 18 to 24, 20.7% from 25 to 44, 21.5% from 45 to 64, and 18.0% who were 65 years of age or older.The median age was 36 years.