The bar charts represent US’ annual salary and the number of households that earned them in 2007, 2011 and 2015 years.
Overall, the number of people who earned from 50,000$ to 74,999$ have remained unchanged in 8 years, while all other figures increased. People who earned more than 100,000$ had the biggest number in 2007 and 2015. The exception was the number of people who earned between 25,000$ and 49,999$.
In 2007, 25 millions of people received less than 25,000$, slightly more people earned from 25,000 to 49,999. There was 20 millions of workers that received between 50,000$ and 74,000$. The lowest figure in this year was workers that have been paid 75,000$-99,999$(30 million). And the highest figure was 2 times more than the lowest one. People from that category gained more than 100,000$.
In 2011, the number of people earning 50,000$-74,999& have remained unchanged, and the figure of workers that earn more have decreased slightly, as well as others that earn more than 100,000$. Additionally, the number of people that had from the minimal annual till 49,999$ have increased by 4 millions.
In 2015, those who received from 0$ to 49,999$ have decreased a little, while people who earn 75,000$-99,999& have risen and reached their peak of 15 millions. The number of workers that have been paid more than 100,000$ hit the highest number of all 3 years by 33 million.