The bar charts compare how many households by annual income in three different years (2007, 2011, and 2015) in the United States.
Overall, the highest proportion of households comes from those earning $100,000 or more, while the least number is from households earning $75,000-$99,999.
Looking at the chart in more detail, in 2007 it is clear that the United States households who earn less than $25,000 stood at 25 million, this figure decreased to slightly below $30,000 in 2011 and remained the same until 2015. Beside that, the proportion of family income between $25,000 and $49,999 started from slightly above 25 million in 2007 and in the next four years rose to around 30 million before steady until the end of the period. In contrast, apart from those categories as mentioned before, the number of households income from $75,000 to $99,000 remains stable over the period at about 15 million.
Turning to other categories, in 2007 US family income from between $75,000 and $99,999 started from a little under 15 million, this number rose and fell over the period. By contrast, those households who earned more than $100,000 a year stood at the highest level in 2007 (just under 30 million). This number experienced a slight decline to around 27 million in 2011, before significantly inclined to reaching a peak to slightly under 35 million in 2015.