The chart below shows the number of households in the US by their annual ’ income in 2007, 2011 and 2015

The bar chart illustrates the shifts in the number of US

households

across various earning brackets from 2007 to 2015, revealing notable trends.

Overall

, These trends indicate that

while

lower- and middle-income groups experienced little to no growth, the proportion of

households

in the highest income bracket expanded consistently, reflecting a gradual increase in

overall

affluence within the United States during the period.

To begin

with,

households

earning less than $25,000 experienced slight fluctuations, beginning at approximately 25

million

in 2007, increasing marginally in 2011, and returning to similar levels by 2015.

Similarly

, the $25,000–$49,999 income group remained relatively stable throughout the period, with household numbers consistently hovering around 30

million

.

Likewise

, a comparable trend is observed in the $50,000–$74,999 category, where the figures stayed close to 25

million

over the years, showing minimal variation.

In contrast

, the highest income group,

households

earning $75,000 or more, demonstrated a steady upward trajectory, starting at just under 30

million

in 2007 and rising significantly to approximately 35

million

by 2015.