In 2005, 82% of American households had two income earners. The vast majority (77%) of households in the top quintile had two or more income earners. This means that the majority of household income in the top quintile are the result of two income earners pooling their resources, establishing a close link between perceived affluence and the number of income earners in a given household. This raises the question of whether or not the combination of incomes results in higher social status. Of course, there is no definite answer as class is a vague sociological concept.