The bar chart gives information about the number of households in the US by their yearly income three different years (in 2007,2011 and 2015)
Overall, households earning $100,000 or more became the largest income group by 2015, while those earning $75,000-$99,999 consistently accounted for the smallest number of households. Apart from these changes, the figures for the remaining income groups showed only slight fluctuations over the period.
In 2007, 25 million households earned less then $25,000, while just over 25 million were in the $25,000-$49,999 bracket. The figures for the $50,000-$74,999 category remained relatively stable at about 21 million throughout the period. By 2011, the number of households earning under $25,000 had risen to roughly 29 million before falling slightly to around 28 million in 2015.
By contrast, the number of households with annual incomes of $75,000-$99,999 changed very little, increasing marginally from about 14 million in 2007 to 15 million in 2015. Meanwhile, the $100,000-or-more group declined slightly from around 29 million to 28 million in 2011 before rising sharply to approximately 33 million, making it the largest category by the end of the period.