<prompt>  Index ages for the survey are OR the age groups recommended in the national pathfinder survey are5, 15, 25, 35, 65 to 70 years5, 10,15,30,60 to 70 years5, 12, 15, 35 to 44 and 65 to 74 years5 to 10, 15 to 35, 40 to 65 years 