The median household income rose by NUMBER@1 % while the income for the 20th percentile -LRB- the lower threshold for the second lowest quintile -RRB- rose by only NUMBER@2 % from $ NUMBER@3 to $ NUMBER@4 .

For example the household income for the 80th precentile , the lower threshold for the top quintile , rose from $ NUMBER@5 in NUMBER@6 to $ NUMBER@7 in NUMBER@8 , a NUMBER@9 % increase . The median household income rose by NUMBER@1 % while the income for the 20th percentile -LRB- the lower threshold for the second lowest quitile -RRB- rose by only NUMBER@2 % from $ NUMBER@3 to $ NUMBER@4 .
