I think this is misleading to some degree. The world produces and consumes vastly more than it did at other points in that period and as a percentage Im guessi

I think this is misleading to some degree. The world produces and consumes vastly more than it did at other points in that period and as a percentage Im guessing the percentage of what we produce to what we consume (ie our self reliance and share of the global production pie) has been steadily decreasing. Id be interested to see numbers which prove or disprove this.