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

The bar chart illustrates the

number

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of members in houses in the US by their salaries in a year over a 3-year period.

Overall

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, what stands out from the chart is that the figure for people of all income groups experienced an increase,

although

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, the

number

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of one group maintained unchanged by the end of the duration. Regarding the two first income groups, the figure of people who received less than $ 25,000 in 2007 witnessed a fluctuation, starting at 25

million

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to roughly 27

million

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.

Similarly

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, the

number

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of households with 25,000-49,000 dollars annually varies between almost 27

million

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and 28

million

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. As for the three

last

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brackets, the individuals who had the most salary

was

Correct subject-verb agreement

were

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the first

score

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to score

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during the period and the population of their group increased to roughly 33

million

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. The

number

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of workers with 75,000-99,000 dollars and 50,000-74,000 underwent the same level, the former stood at approximately 14

million

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and the latter remained at almost 21

million

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.