The provided bar chart illustrates the distribution of households in the US based on their annual income across five income brackets for the years 2007, 2011, and 2015.
Overall, the bar chart exhibits variations in the number of households in the US across different income categories from 2007 to 2015. The $100,000 or more income bracket experienced a notable increase over the period, surpassing other income groups by 2015.
In 2007, the highest number of households in the US fell into the $50,000-$74,999 income bracket, followed by the $25,000-$49,999 bracket. The $100,000 or more category consistently had the highest number of households each year. Interestingly, households earning $75,000-$99,999 constituted the smallest proportion annually.
By 2015, there was a significant rise in the proportion of households earning over $100,000, with this category becoming the largest income group, surpassing the $75,000-$99,999 bracket. The percentage of households earning $100,000 or more peaked at nearly 35%, marking a substantial growth from around 30% in 2007. Additionally, the $25,000-$49,999 income bracket showed consistent figures across the years and remained relatively stable compared to other income groups.