The chart below shows the number of households in the US by their annual income in 2007, 2011 and 2015. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The bar chart provides the number of

households

Change noun form

households'

household's

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annual income in the US.

This

diagram illustrates the comparison in the following year: 2007, 2011 and 2015. Referring to the chart diagram, those figures gradually changed in these three years. As the $50,000-$74,999 of

group

households increasing performance was nearly tied in these three years, the $75,000-$99,999 of

group

as well.

Then

, the less than $25,000 and $25,000-$49,999 of the

group

was beyond the $100,000 or more of the

group

in 2011, it reached the 30 million. Surprisingly, in 2015, the $100,000 or more of of

group

dramatically increased the number

than

Change preposition

to

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2011, and the performance

also

reached a peak.

Overall

, the whole number of households compared with 2007's figure, till 2015, the figure subtle increased

Change preposition

in

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2015. Particularly, the the $100,000 or more of of

group

is the highest performance in

this

diagram.