Of course it all comes down to the metrics used to generate the graphs, but here's how the United States has done since the year I was born according to this web site:
Here's how we've done compared to Britain:
Next, I thought I'd look at a couple of countries that weren't in such great shape when I was born but are considered in great shape today. Germany was only 15 years out of its disastrous defeat in World War II back then, and while free and independent it was still swarming with American servicemen:
South Korea went from being a tightly controlled country to one with more freedom, and the results speak for themselves:
And then there are neighbors to the north and south. Mexico has made some improvements, but certainly not much in the way of economic freedom:
And lastly, Canada:
Interesting snapshots, to be sure.