Distribution of adults by income tier in U.S. metropolitan areas, 2000 and 2014 Distribution of adults by income tier in U.S. metropolitan areas, 2000 and 2014, cont. Distribution of adults by income tier in U.S. metropolitan areas, 2000 and 2014, cont. Distribution of adults by income tier in U.S. metropolitan areas, 2000 and 2014, cont. Distribution of adults by income tier in U.S. metropolitan areas, 2000 and 2014, cont. Distribution of adults by income tier in U.S. metropolitan areas, 2000 and 2014, cont. Distribution of adults by income tier in U.S. metropolitan areas, 2000 and 2014, cont. Distribution of adults by income tier in U.S. metropolitan areas, 2000 and 2014, cont. Changes in the distribution of adults by income tier in U.S. metropolitan areas, 2000 to 2014 Changes in the distribution of adults by income tier in U.S. metropolitan areas, 2000 to 2014, cont. Changes in the distribution of adults by income tier in U.S. metropolitan areas, 2000 to 2014, cont. Changes in the distribution of adults by income tier in U.S. metropolitan areas, 2000 to 2014, cont. Changes in the distribution of adults by income tier in U.S. metropolitan areas, 2000 to 2014, cont. Changes in the distribution of adults by income tier in U.S. metropolitan areas, 2000 to 2014, cont. Changes in the distribution of adults by income tier in U.S. metropolitan areas, 2000 to 2014, cont. Changes in the distribution of adults by income tier in U.S. metropolitan areas, 2000 to 2014, cont. The middle-class share fell in almost all U.S. metropolitan areas from 2000 to 2014 The share of adults in upper-income households increased in the vast majority of the U.S. metropolitan areas rom 2000 to 2014 The share of adults in lower-income households increased in most U.S. metropolitan areas from 2000 to 2014