It was published on Friday 21st September 2007 (the first XY during my blog).
The data: Number of economic reforms made (x) and economic growth rate (y) since 1989 when communism collapsed in Eastern Europe. Blue circle = European Union member state.
It's easy to see that it pays off for a state to join EU.
That's a powerful message displayed clearly. No other graph would have done that this well.
