the chart below shows the number of houesholds in the us by thier annual income in 2007 , 2011 and 2015

The bar chart gives information about the number of per family in terms of their yearly earning in

the

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us in three different years.

It is clear that

the figure for salaries which were 100000 or more increased the most in comparison with the others from 2007 to 2015.

However

,the other number went up and down or stayed steady during

this

period.

According to

the given data, People who earned the most went down slightly but

finally

peaked at about 34,which still remained the highest in three distinct years.These figures were nearly double as high as those for people who made the second highest income. There were slightly decreased,at around 13 and stood at 15 eventually. There were the same trends between families with the lowest income and households with the second lowest salaries.

The

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population

of

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them

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initially

rose but a little

declined

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in 2015,at almost 27 and 28 respectively.

By contrast

with the above categories,the number of people in the middle class levelled out,at approximately 21, throughout

out

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these periods.