Task: Question Generation
Input (English): Passage: Of Saratoga Countys population in 2010, 6.3% were between ages of 5 and 9 years, 6.7% between 10 and 14 years, 6.5% between 15 and 19 years, 5.5% between 20 and 24 years, 5.5% between 25 and 29 years, 5.8% between 30 and 34 years, 6.6% between 35 and 39 years, 7.9% between 40 and 44 years, 8.5% between 45 and 49 years, 8.0% between 50 and 54 years, 7.0% between 55 and 59 years, 6.4% between 60 and 64 years, and 13.7% of age 65 years and over. 22.7% of the countys population was under age 18. The median age was 40.9 years.
Output (English): Which age group made up the second largest percentage of the population?