sentences:  The average household size was 2.11 and the average family size was 2.55.In the city, the population was spread out, with 15.3% under the age of 18, 4.0% from 18 to 24, 19.2% from 25 to 44, 32.2% from 45 to 64, and 29.3% who were 65 years of age or older.The median age was 54 years.