The chart below shows the number of households in the US by their annual income in 20072011 and 2015. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The bar graph illustrates the

number

of

families

in the US by their yearly earnings in 2007, 2011, and 2015.

Overall

,

it is clear that

the

number

of

families

earning $100,000 or more was the highest in 2015,

while

the proportion of

families

earning between $75,000 and $99,999 was the lowest in every year shown. Focusing on the year 2015, the

number

of

families

earning $100,000 or more was about 33

million

, which was significantly higher than in 2007 and 2011, when the numbers were approximately 29

million

and 27

million

, respectively.

Moreover

,

families

earning between $25,000 and $49,999 were higher in 2011, at about 30

million

, compared to 28

million

in 2015 and 26

million

in 2007.

In contrast

, the

number

of households earning between $50,000 and $74,999 showed no significant change over the years, remaining steady at around 21

million

. Regarding the remaining income groups,

families

earning between $75,000 and $99,999 in 2015 were considerably higher, at 15

million

, than in 2011 and 2007, which were roughly 13

million

and 14

million

, respectively.

In addition

, the

number

of

families

earning less than $25,000 showed slight fluctuations, rising from 25

million

in 2007 to 28

million

in 2011, and

then

falling to approximately 27

million

in 2015.