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

The bar chart illustrates how the

number

of families in the US by their annual

income

changed in 2007, 2011 and 2015. The

number

of

households

with less than $25,000 annual

income

was approximately 25

million

in 2007,

while

it saw a slight increase of about 4

million

after 4 years.

However

, there was a stable decrease of 2

million

in 2025. As for the

number

of

households

with $25,000- $49,999 annual

income

, it experienced a similar trend but was always a little over than the former.

By contrast

, the

number

of

households

with $75,000-$99,999 and $100,000 or more annual

income

showed an opposite trend with the above two types. about the

number

of

households

with $75,000-$99,999, from just below 15

million

in 2007, it dipped to around 14

million

, before growing to its peak of 15

million

in 2015. Even if the change in the

number

of

households

with $100,000 or more seemed the

number

of

households

with $75,000-$99,999, it was always nearly twice as many as the

number

of

households

with $75,000-$99,999 in the three years.

In addition

, it was noticeable that the

number

of

households

with $50,000-$74,999 always remained constant at 21

million

.

Overall

,

it is clear that

the

number

of

households

with lower and higher annual

income

was larger in the three years, all over 25

million

,

whereas

the

number

of

households

with $75,000-$99,999 was the smallest.