The bar chart illustrates the number of residents in United States by their annual income along 3 periods which are 2007,2011 and 2015. As the graph shows, the X-axis represents the number of years, while Y- axis represents number of households in million. Overall, it can be seen that the number of households who earned $100,000 or more was the highest population among other tranches. It’s evident from the chart that the number of people who earned less than $25,000 increased from 25 million to approximately 28 million form year 2007 to 2015, respectively, In the same way, the number of people who got between $25,000 and $49,999 rose from around 27 million to 29 million form year 2007 to 2015, respectively. On the other hand, households whose income between $50,000 and $74,999 was approximately the same through the mentioned three periods. Furthermore, citizens who got between $75,000 and $99,999 increased by 2 million from 2007 and 2015. The number of inhabitant who received between $100,000 or more experienced remarkable increase from just under 30 million to about 38 million.