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 given chart illustrates the

number

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of citizens in the US by their earnings in three years (2007, 2011 and 2015).

Overall

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, the

number

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of households has divided into 5 groups for each year. It's obvious that significant changes have occurred from 2011 to 2015, especially, in the

number

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of reach people. From 2007 to 2011 there had been little differences. The

number

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of people who have $50,000-$49,999 and $75,000-$99,999 income almost remained the same: around 20 and 14.8 million respectively. During

this

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period, the biggest changes were in the

number

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of households who earn less than $25,000, $25,000-$49,999 and $100,000 or more. In the first and second groups, the

number

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of households has increased from approximately 25 to 28 and from 27 to 29

accordingly

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. The third group experienced a fall in the

number

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and became roughly 26 from 29. In 2015, the total

number

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of people who gained $100,000 or more saw significant growth and reached its highest level, almost 33 million. Other numbers of the population experienced very little changes compared to the past years. in order of income, these numbers were around 27, 28, 21 and 15 million.