Income in the United States is most commonly measured by United States Census Bureau in terms of either household or individual and remains one of the most prominent indicators of class status. As 82% of all households, 16% of those in the top quintiles, had two income earners the discrepancy between household and personal income is quite considerable. In 2005 the top 95% of income earners made $12,500 or more, while 18% of households had incomes over $100,000. Personal income is largely the result of scarcity. As individuals who hold higher status positions tend to possess rare skills or assume positions society deems very essential, have higher incomes. Overall the median household income was $46,326 in 2005 while the median personal income (including only those above the age of 25) was $32,140.