The chart below shows the number of households in the US by their annualincome in 2007,2011 and 2015.

The bar chart compares the

number

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of households sorted by annual

income

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in the US in 2007, 2011, and 2015.

Overall

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, by

2015

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2015,

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the US household

income

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distribution became more

polarized

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polarised

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, with the highest-

income

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group extending its lead

while

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the lowest two categories moved in lockstep and the middle bands stagnated. In 2007, there were nearly 30

million

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households that had an

income

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of more than $100000 per year

,

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;

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the

number

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of those

family

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families

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dropped slightly to around 28

million

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in 2011 before increasing to roughly 34

million

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in 2015. Meanwhile, the

number

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of

family

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families

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which earned between $75000 and $99999 remained lower than 15

million

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, the tiniest figure

showed

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shown

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on the chart, from 2007 to 2015. In terms of other

income

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level

bracket

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brackets

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, it was notable that the modest

income

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household

number

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levelled off around 20

million

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.

While

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the less than $25000 with 25

million

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bands households and $25000-$49999 bands with around 27

million

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both grew to nearly 30

million

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between 2017 and 2011

and

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, and

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then

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slipped back to a lower level by 2015.