Just found this cool little Flash program which compares life expectancy and Income per Capita for all of the World’s nations over the past 25 years.
It is quite cleverly done, and there are some quite astounding details that you notice on such a timeline: How China has sprinted up the income ladder, how Rwanda’s life expectancy plunged during the genocide, how Luxembourg is now the wealthiest country in the world – measured pr. Capita.
And then you notice that the whole scale is made out logarithmically rather than linearly. And then you can a better view of how big the gap really is.
Apparently, there’s also a whole webpage dedicated to the visualisation of global statistics of this sort.