the chart below shows the number of houesholds in the us by thier annual income in 2007 , 2011 and 2015

The bar chart displays the annual revenue of the average family in the United States from 2007 to 2015 based on some observations.

Overall

, it is noticeable that the data revealed an upward trend in all monthly income categories.

In addition

, the majority of households could reach a peak taking into account the financial achievement

at the end

of the period. At the beginning of the period, it is not neglected that most households could generate income over 100,000 US Dollars and the participants tended to increase gradually to just below 35 points in 2015;

nevertheless

, they decreased slightly by 3% in the previous year.

Moreover

, unfortunately, at the middle level, about 28 million families could only contribute their income at approximately 25,000 US Dollars.

Furthermore

, it coincided with 50,000 to 74,999 groups that levelled off until the end of the period, accounting for just over 20 million households.

In contrast

,

although

75,000 to 99,999 classes have been at the lowest level, their contributors kept up to increase moderately to 15 million families in 2015.