The bar chart compares the proportion of households in various income groups in three different years. Overall, the number of households earning $100.000 or more has increased significantly over the period, whereas other income groups remained relatively stable.
In 2007, people earning $100.000 or more and $25.000-$49.999 were considerably higher among three others, showing almost 30 million people and approximately 27 million separately. In the following four years, numbers of $25.000-$49.999 income groups rose by about 4 million, but the figure for $100.000 or more money earners decreased by $3 million. People with $100.000 or more earnings started to dominate and reached it’s peak of about 33 million people, while the other one began to decline with 28 million.
Regarding the other three groups, with $75.000-$99.999,$50,000-$74,999 and under $25.000, in 2007, they showed 14 million,22 million and 25 million respectively. In 2011, t less than $25.000 and $75.000-$49.999 annual incomes have slightly changed, with the first one increasing to approximately 28 million and the other category dropped by about 1 million people. In 2015, the figures for below $25.000 started to go down, whereas the second figure reached 15 million.