A few things that stand out to me:
-The United States seems the most positively skewed - mean is much greater than the median (5th line)
-There is a significant proportion in the US in the lowest decile compared with other developed countries - Canada, Britain, France...
-US has largest top decile by a fair margin
It would be interesting to see this over statistic over time. I'm guessing that our country has always had a larger range than the other countries. I think it's pretty fair to think that this was constantly changing (under every presidential administration).