Here is the actual graph of income growth, 1988-2008. Who were the middle class (specifically the 20&#x27;th-70&#x27;th percentile) making worse off?<p><a href="https:&#x2F;&#x2F;pbs.twimg.com&#x2F;media&#x2F;CUXo2NNUYAASTND.jpg:large" rel="nofollow">https:&#x2F;&#x2F;pbs.twimg.com&#x2F;media&#x2F;CUXo2NNUYAASTND.jpg:large</a>