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

The given bar chart shows how much the annual income that were earned by American

households

in three different years 2007, 20o11, and 2015. It is apparent that the number of

households

gaining the two highest salaries in 2015 was higher than in other years.

Moreover

, the figures for

households

earning 50,000-74,999

USD

and 75,000-99,999

USD

(the third and second highest categories) are almost unchanged in all given years. The first category (Less than 25,000

USD

) was 25

million

households

in 2007 and increased in the next year to around 28

million

.

However

, it slightly fell to about 27

million

. The number of

households

who get annual income in the second category (25--,000-49,999

USD

) was around 27

million

in the first year and experienced a slight increase to almost 30

million

.

Nevertheless

, it decreased to about 28

million

. The figures for

households

gaining salary in the third and fourth categories (500,000-74,9999 and 75,000-99,999

USD

) almost remained. The number of

households

getting the highest salary or the fifth category (100,000

USD

or more) was almost 30

million

in 2007 and experienced a down-trend at around 27.5

million

.

However

, it rocketed

at the end

of the period to over 37

million

.