Is this elaborated on anywhere to break down by age/etc? Because "9.9% of that 10% of households are actually just your parents/grandparents who've made good ch

Is this elaborated on anywhere to break down by age/etc? Because "9.9% of that 10% of households are actually just your parents/grandparents who've made good choices over the course of their life rather than a bunch of bankers" doesn't trigger people as much.