The presented bar chart offers a  compelling comparative analysis of the number of American 
families
, earning various Use synonyms
income
 segments in 2007, 2011, and 2015.  A broad view of the graph provides a glimpse into the relatively constant pattern of mid-level earners as opposed to the significant divergence exhibited in the population of the affluent society. 
An in-depth examination of the data reveals the roughly fixed population of Use synonyms
families
 earning an Use synonyms
income
 segment  starting from $50,000 to $100,000 which continually accounted for 35 million Use synonyms
families
 in total. Use synonyms
This
, Linking Words
however
, is in marked contrast to the figures for wealthy households whose Linking Words
income
 surpasses $100,000, experiencing a considerable rise to a population of approximately 35 million people in 2015. Turning to Use synonyms
families
 with lower than average Use synonyms
income
 (less than$25,000-$50,000) , a notable growth to a sum of 60 million people is clearly visible in 2011 which Use synonyms
subsequently
, experienced a negligible decrease in 2015 .Linking Words