Tell Me What "Average Is Over" Looks Like , by Bryan Caplan

Here are two graphs of lifetime male income distribution broken down by educational attainment.  One is for 1978, the other from 2008.  I deliberately redact the years and dollar values to preserve the mystery.

Graph #1:



Graph #2:



Now you tell me: Without cheating by looking at the year, in which graph is "average over" - and why?

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