The chart below shows the number of households in the US by their annual income in 2007, 2011 and 2015.

The given bar chart compares the differences in the US family revenue in 2007, 2011 and 2015. Units are measured in millions.

Overall

, it can be seen that the number of households attained less than $25,000 was the highest in most of the

time line

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timeline

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, except 2011. It can

also

be observed that the families who had

the

Correct article usage

an

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average income between $75,000 and $99,000 were at the lowest. Looking at the figures in

further

detail, a

group

of families who had an annual income of more than $100,000 increased slightly in 2011 (28

million

) and decreased slowly in 2015 (27

million

). A similar pattern was seen in the $25,000-$49,999

group

which captured just 26

million

in 2007 and turned to nearly the same in 2015 within a range of 27

million

.

By contrast

, a

group

which was having an annual revenue of more than $100,000 declined smoothly from 29

million

to 28

million

and rose significantly to 33

million

in 2015. Turning to the remaining statistics, households who obtain an average income between $50,000 and $74,999

was

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were

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relatively flat from 2007 to 2015. The remaining

group

had

the

Correct article usage

apply

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insignificantly changed through a timeframe