The 2005 economic survey also found that households in the top 40%, those with an annual household income exceeding $55,331, had a median of two income earners while those in the lower quintiles (2nd and middle quintile) had median of only one income earner per household. Due to high unemployment among those in the lowest quintile the median number of income earners for this particular group was determined to be zero. Overall the United States followed the trend of other developed nations with a relatively large population of relatively rich households outnumbering the poor. Among those in-between the relative extremes of the income strata a large and quite powerful section of households with moderately high middle class incomes and an even larger number of households with moderately low incomes. While the median household income has increased 44% since 1990 it has decreased very slightly when considering inflation. In 1990, the median household income was determined to be $30,056; $44,603 in 2003 dollars. While personal income has remained relatively stagnant since over the past few decades, household income has risen due to the rising percentage of households with two or more income earners. Between 1999 and 2004 household income stagnated showing a slight increase since 2004.