As I have criticized Helsingin Sanomat, the largest newspaper in Finland, for not publishing any scatter plot charts (XY charts), here's one!
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.