The bar chart illustrates the number of households in the United States (in millions) across six annual income categories in the years 2007, 2011, and 2015.
Overall, it is evident that the number of households earning higher incomes increased over the period, while those in the lower income brackets generally declined. This suggests a gradual shift toward higher household earnings between 2007 and 2015.
In 2007, the largest number of households earned less than $25,000, with nearly 30 million in this category. However, this figure declined slightly in the following years. Similarly, households earning between $25,000 and $49,999 also saw a decrease from 2007 to 2015.
In contrast, the number of households earning $50,000 or more showed a steady increase. The “$100,000 or more” category experienced the most significant growth, rising from about 22 million in 2007 to over 30 million in 2015, becoming the highest income group by the end of the period.