It's a survival rate chart, full article here: http://www.popularmechanics.com/technology/aviation/safety/4219452 http://www.popularmechanics.com/technology/avi

It's a survival rate chart, full article here: http://www.popularmechanics.com/technology/aviation/safety/4219452 http://www.popularmechanics.com/technology/aviation/safety/4... Based on 20 plane crashes in the United States.