First off I would just like to say fuck his digital signature. Now that we've got that out of the way:
Capitalism didn't suddenly spring forth as an inauguration gift to Eisenhower.
Almost all of the graphs are from 1950-ish onward. Wind the clock back farther, and 1950 looks less benchmarky and more outliery.(pdf warning).
There's a rant that could go here that sounds a bit like: something something nlrb something something wildcat something something something West Virginia.