The chart below shows the umber 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 charts illustrate the annual

income

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in the US from 2007 to 2015.

Overall

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, the annual

income

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had an uprising trend throughout all timelines. The majority of households consisted of less than $49,999. They had uprising trends, which slightly decreased in 2011. The middle group, between $50,000 and $74,999, did not demonstrate significant change,

while

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those who have over $100,000

income

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inclined more than five million households. It is notable that in 2011, the middle-upper group declined when groups between $25,000 and $49,999 and less than $25,000 increased by approximately five million households respectively. The next year, the middle-upper group was resilient and exceeded all groups

while

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the under-group illustrated a slight decline.

To sum up

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, it is noteworthy that all incomes fluctuated throughout all timelines,

however

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, recovered and increased gradually at

last

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. The annual

income

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of more than $100,000 increased significantly except for a slight decrease in 2011.