The bar chart illustrates the number of households and annual income in the U.S. in 2017, 2011 and 2015.
Overall, the number of households yearly income was highest in 2015 at 34 million. In addition, in the households received equal amounts as their income.
To begin with, the number of households who got yearly income $75,000-99,999 was nearly equal in all year. It indicates that there were fewer work opportunities or higher competitions in this period. Furthermore, in 2015 the number of householed which received more than $100,000 in income increased, while previous years showed less than $100,000. Itcan be seen that, in 2015 many facilities may have been sophisticated for employees. Moreover, although the number of household in 2011 and 2015 had nearly equal annual salaries, except for the number of households which received higher profits. Hence, it is clear that in future the figure of annual income
