The chart below shows the number of households in the US by their annual income in 2007, 2011 and 2015. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Given is a bar chart concerning family

income

. It provides a comparison of the US

families

' yearly

income

in 2007, 2011 and 2015. Apparent is the fact that households of the highest and lowest levels of

income

experienced

such

a

Correct article usage

apply

show examples

considerable growth. From 25

million

in 2007, the

number

of

families

receiving a minimum salary of 25000 dollars annually, reached 28

million

in 2015.

Similarly

, having a negligible drop in 2011, the

number

of wealthiest

families

or earners of more than 100000 dollars yearly soared from 29

million

in 2007 to 33

million

families

in 2015. In stark contrast,

however

, remained virtually stable during the period in question, the US

families

with moderate levels of

income

.

To sum up

,

while

, the

number

of richest

families

and

also

the poorest ones experienced an upward trend the

number

of

families

with moderate

income

saw negligible changes in the United States.